You could also release a muzzled tiger wearing boxing gloves on all four paws and have it scare the crap out of your dog every time it tries to sniff food laying on the ground. :wink: But seriously, while it'd be wonderful to have dogs who can elevate themselves above their natural instincts (or even better, dogs that are immune to poison!), it is very difficult to train for food [u]avoidance[/u]. Food refusal is one thing and it can surely be achieved with good training, but a ridiculously large number of great guard dogs, many of which [u]have[/u] been thought not to accept food from strangers, have been lost to the simple act of tossing a chunk of poisoned meat into their yards.