Thanks for your input.
Most of you agree with my line of thinking.
As for the bat or 22 - would you try to take down a black bear with that (this is a very thick skulled 120+ solid muscle animal)? I need something that will be instantaneous. I have a 22 and a 12 guage. I would have used the 12 gage - but I just sounded too messy. I'm going to borrow a buddies deer rifle or 357 and do it right.
And i'm not taking my dog to a vet just have them charge me 100 to 200 (vet and disposal fees) bucks for taking care of my problem.
And I don't care of my son was jumping on him - he knows better to even look funny at the kids. After he did it, he was instantly hiding in a closet...

That's going to be one big hole to dig...