interesting to find this thread. I just sent a dog home today after a week and a half in the clinic. he came in on a saturday, extremely dehydrated, emaciated, and with his right rear leg DEAD and black below the stifle. Could see bone at that point. I amputated it and started the rehab. he is getting along good on the remaining three now. dont have definite onfirmation but had to be caught in a trap. Law in Illinois says you have to check traps daily- obviously this guy wasnt doing that. Yes, the dog should have stayed home, but a daily check would have saved his leg.