Here is the story to Brian's burn (see second pic):
He had his bark collar on for 2 days, which loosened around his neck. While it was shocking him, he decided to bark through it and talk to the cows in the field next to us! So the bark collar arced and burned him. You would think he was smart enough to stop barking, but since Basset Hounds and Great Pyrenees shouldn't mix anyway, what can you expect?