Pica Safety: Swap & Check In
Impulse Control · 19 steps · by @fearfuldogs
Your Dog will learn to **spit out whatever is in their mouth on the verbal cue 'Swap'** — from a few metres away and outdoors — and to **check in with you instead of mouthing** a non-food object they find on the floor or on a walk.
**Read this first — training is the third layer, not the first.** 1. **Vet workup.** Foreign-body pica can be driven by GI disease, nutritional or endocrine problems, hunger (diet change, steroids and other meds), anxiety or a compulsive disorder. Rule those out before treating it as a training problem, and bring in a veterinary behaviourist if it looks compulsive (fixed on one material, hard to interrupt, increasing). Vomiting, retching, a painful belly, lethargy or not passing stool after a suspected ingestion is a same-day vet visit. 2. **Management is the safety net.** Pick up, gate off, crate or supervise; a well-fitted **basket** muzzle on walks if the dog eats things outdoors — condition it first with the [Muzzle](pushdropstick://plans/muzzle) plan. This plan lowers risk; it does not make an unsupervised pica dog safe. 3. **Needs met.** Daily legal chewing and foraging (scatter feeding, snuffle mats, frozen lick mats, appropriate chews sized so they can't be swallowed).
**Why swap, not chase.** Many pica dogs have learned that a person approaching means the item is about to be taken, so they swallow fast or start a keep-away game. Chasing, cornering or prying the mouth open makes ingestion MORE likely and can build guarding. 'Swap' rewrites that history: giving something up always pays better than keeping it. On safe items, give the object back after the treat often.
**Until 'Swap' is solid in real life,** don't walk toward a dog with something in their mouth. Move AWAY instead: ask for a known hand target or recall from where you stand, or head to the kitchen and make treat noises. Pay well, toss a second treat away from the item, then pick it up while they eat.
**Stop and get in-person help** if Your Dog stiffens, freezes, hunches over an item, growls or snaps when you approach — that is resource guarding and deserves a pro's eyes, not more reps.
Training steps
Toss from across the room
Setup: Your Dog is working on a frozen stuffed rubber toy in their pen or bed. You are at the far side of the room, not moving toward them.
Without stepping closer, toss a high-value treat so it lands near Your Dog, then go back to what you were doing. You are teaching that you noticing them with something = a bonus.
Success: Your Dog stays loose: eats the treat and goes back to the toy at the same pace.
Advance on: 4 of 5 successes
Approach to 3 m, toss and leave
Setup: Your Dog is working on a frozen stuffed rubber toy (sized far too big to swallow) in their pen or bed.
Walk calmly to about 3 m away, toss a high-value treat so it lands near them, then turn and walk off. Never take the toy, and don't linger. If they pick it up and leave, let them go and don't follow.
Success: Your Dog keeps chewing at the same relaxed pace, or looks up softly for the treat.
Advance on: 4 of 5 successes
Approach to 1.5 m, toss and leave
Setup: Your Dog is working on the frozen stuffed rubber toy in their pen or bed.
Walk to about 1.5 m, toss the treat beside them, walk off. Still never take the toy.
Success: Your Dog keeps chewing at the same relaxed pace, or looks up softly for the treat.
Advance on: 4 of 5 successes
Pause at 1 m, toss and leave
Setup: Your Dog is working on the frozen stuffed rubber toy in their pen or bed.
Walk to about 1 m, pause for one breath, toss the treat beside them, walk off.
Success: Your Dog keeps chewing at the same relaxed pace, or looks up softly for the treat.
Advance on: 4 of 5 successes
Arrive beside, add a treat, leave
Setup: Your Dog is working on the frozen stuffed rubber toy in their pen or bed.
Walk right up, place a high-value treat beside the toy (not reaching for it), and walk away. Your arriving now means MORE, never less. Stiffening, freezing, a hard stare or a growl means stop and get an in-person consult.
Success: Your Dog stays loose and pleased: wags or softens, eats the treat, goes back to chewing at the same pace.
Advance on: 4 of 5 successes
Swap at the nose
Setup: Your Dog is holding a low-value toy in their mouth, relaxed, right beside you.
Say 'Swap' once, then immediately put a high-value treat right at their nose. When the toy drops, give the treat, then hand the toy back. Don't reach for the toy while it's still in the mouth.
Success: Your Dog drops the toy within 2 seconds of the treat arriving at their nose.
Advance on: 4 of 5 successes
Treat appears after the cue
Setup: Your Dog is holding a low-value toy, beside you. Treat in your pouch, hands still.
Say 'Swap', wait one full second, THEN bring the treat from your pouch to their nose. The cue now comes before any sign of food. Give the toy back after.
Success: Your Dog drops the toy as the treat arrives (or before).
Advance on: 4 of 5 successes
Show the treat at a distance
Setup: Your Dog is holding a low-value toy, beside you.
Say 'Swap', then show the treat about 30 cm from their nose instead of at it. Pay at the nose once the toy is down.
Success: Your Dog drops the toy when they see the treat 30 cm away.
Advance on: 4 of 5 successes
Only the verbal cue
Setup: Your Dog is holding a low-value toy, beside you. Hands still, no treat visible.
Say 'Swap' and wait up to 3 seconds without moving your hands. The moment the toy drops, mark and pay from the pouch, then give the toy back.
Success: Your Dog drops the toy within 3 seconds on the word alone.
Advance on: 4 of 5 successes
Swap a favourite toy
Setup: Your Dog is holding their favourite toy, beside you.
Same as before, word only. The item is now worth more to them, so make the treat count. Always give the favourite back after; that's half the payment.
Success: Your Dog drops the favourite toy within 3 seconds of the cue.
Advance on: 4 of 5 successes
Swap a household decoy
Setup: Your Dog has picked up a decoy household item too big to swallow (a dish towel or large cardboard tube), beside you.
This is the class of thing they actually eat. Say 'Swap', word only. Pay well, then calmly pick the item up off the floor yourself and put it away (don't hand household items back).
Success: Your Dog drops the decoy within 3 seconds of the cue.
Advance on: 4 of 5 successes
Decoy: show the treat first
Setup: Your Dog is holding the decoy household item, beside you.
Say 'Swap' and bring the treat to their nose right away, as in the first step, but with the decoy instead of a toy.
Success: Your Dog drops the decoy when the treat reaches their nose.
Advance on: 4 of 5 successes
Swap while walking away
Setup: Your Dog has the decoy and is walking away from you, about 1 m off. Don't follow.
Stay where you are. Say 'Swap' once. When the item drops, mark and toss the treat a little toward you so they come away from it, then pick the item up.
Success: Your Dog drops the decoy within 3 seconds, without you moving toward them.
Advance on: 4 of 5 successes
Swap from 2-3 metres
Setup: Your Dog has the decoy 2-3 m away in a familiar room.
Stand still and say 'Swap'. Mark the drop, then have them come to you for the treat. Coming away from the item is part of the behaviour now.
Success: Your Dog drops the decoy and comes to you within 5 seconds.
Advance on: 4 of 5 successes
Swap outdoors
Setup: Yard or quiet outdoor spot, Your Dog on a long line or in a fenced area, holding a large towel or large rubber toy decoy (no sticks: they splinter; no rope toys).
Same cue, word only, from about 1 m. Outdoors is harder; bring your best treat.
Success: Your Dog drops the item within 3 seconds of the cue.
Advance on: 4 of 5 successes
Notice and check in (indoors)
Setup: Decoy item on the floor in a familiar room. Your Dog on a short leash beside you, leash length keeping their mouth just out of reach of it.
Stand still, say nothing. When they look at or sniff toward the decoy and then look up at you, mark and drop the treat on YOUR far side, away from the item. The leash is management only: never pull or pop it.
Success: Your Dog looks back at you within 5 seconds of noticing the decoy.
Advance on: 4 of 5 successes
More distance from the decoy
Setup: Same decoy, but you and Your Dog stand 2 m further away from it, on leash.
Further away makes it easier to look back. Mark the glance to you, pay on your far side.
Success: Your Dog looks at you within 5 seconds of noticing the decoy.
Advance on: 4 of 5 successes
Walk past the decoy
Setup: Decoy on the floor indoors. Walk Your Dog on leash past it at about 1 m, with yourself between dog and decoy at first.
Keep walking calmly. Mark and pay the check-in as you pass, treat delivered on the side away from the decoy.
Success: Your Dog passes the decoy and looks to you without reaching for it.
Advance on: 4 of 5 successes
Check in on a walk
Setup: On a normal walk route, you've placed a large decoy (or know a spot with litter, sticks or similar) beside the path. Leash, and basket muzzle if Your Dog wears one on walks.
Walk past at a comfortable distance. Mark and pay the moment Your Dog notices it and looks to you. Keep the muzzle on if that's your management: training adds to it, never replaces it.
Success: Your Dog notices the item and checks in with you without being cued.
Advance on: 4 of 5 successes
Keep 'Swap' rich for life: pay it with high-value food every single time, especially the times it really mattered. Keep the management up even when the check-ins look solid; a pica dog's worst day only has to happen once. Pair this with the Leave it plan for food on the floor.