Good on you for your positive intentions. Hope you are able to get him squared away. Gotta be a sorry piece of [bleep] to dump a dog like that. Time and positive interactions will possibly help you build trust. Best of luck, sure wouldn’t want to “corner” him into a fight or flight response. Feeding him should help it get the idea you are a friendly. Sorry, rambled on and didn’t answer your question. No idea on trapping.
