I just brought my 3 year old in from his kennel and found the buckle and d-ring of a leather collar, still attached to a small bit of the leather. The remainder of the collar, about 20", nowhere in sight. He did this two years ago with a smaller, synthetic fiber collar. All came out fine in the end . I had put the collar on top of a cooler outside his kennel. He must have been able to reach his paw through and drag it in. I am planning on feeding him a bunch of pumpkin, (there goes Thursday's pie) and keeping a close eye on him. I am afraid inducing vomiting might be rougher on his insides than getting rid of it in the conventional way. Any thoughts? I will of course head straight for the vet at the first sign of discomfort or stress!