
to be honest, as harsh as it sounds i would consider muzzling. would rather get funny looks than have a dead dog on my hands... my leo used to be obsessed with frogs and toads, so much so he ended up at the vets from toad poisoning, see past posts, although they arent supposed to eat them as they taste foul, i think he loved the chase more than he hated the side effects. he used to get the toads in the garden. after a word of advice from the vet i muzzled him when he went out for a wee for just over a week. although a vet normally isnt really one to take behavioural advice from, in this case he was right. it was enough for him to break the cycle of toad catching and he could have just as much fun splattin them with his feet, we now have several dozen leo feet shaped toads on the garden! touch wood, since then he hasnt had one in his mouth. probably best piece of advice a vet has given me.
im not saying it will work, but it is something to consider, a little bit of discomfort for him now until he gets out of his habit will be well worth it if it saves him from major surgery later when he does some serious damage.