Tx, I appreciate the information.
Folks, I don't think anyone is talking about shooting anyone else's pet because he's roaming in the woods. One of my neighbors have small dogs that get out sometimes and the deer chase them more than vice a versa, kind of hilarious to watch.
I have been attacked by dogs without collars in the woods. they picked a bad time to do it. My friend was attacked by some coyote/dog crossbreeds and he spent two weeks in the hospital and tore his bow up fighting them off.
In my opionion, if your former pet has taken up with coyotes, I'll shoot him with a gun. If several of your pets are running together, I'll come to you first and after reading Tx's comments, I'll probably go to the wildlife boys next and if that doesn't work, theres' not much left to do but eliminate them.