I think Ron's reaction to his child being missing was perfectly normal. There is usually only one reason some jackazz takes a baby girl and we ALL know what that is. What father wouldn't be furious and ready to kill the perp? Only wimp-azzes. Ron is no wimp.
Stop expecting men to behave like wimps - it isn't right.
I can't imagine a man being calm and courteous in such a situation and my hinkey meter would blow up if he were. Anger, fury, rage, fear, pain, helplessness - all the same. It came out as desperate to me and certainly not over the top by any means. No men in my life are wimps and I would expect very similar responses from them in the same situation.
I just don't see Ron as such a bad guy. In fact, he seems quite harmless to me.
Just looking at HC2 makes me want to beat the living cr*p out of him and if he was on my property or my granny's property and and wouldn't leave, I would have to show him Mr. Shotgun because I have couldn't win a fist fight with him. I am glad Ron pummeled him senseless.
Give me a break on the dead rat. The place is a swamp, there are rats everywhere. Ron didn't catch a freaking rat, chop it's head off and put it in a mailbox and it wasn't someone's pet rat. Actually, I thought it was hilarious. He should have just put it on the door step though. The mailbox thing will cause problems. I know, some kids in my neighborhood put all the guts of a pumpkin in the neighborhood mean guy's mailbox one Halloween. The mailbox police came and questioned all the kids - me too.
It was hilarious but of course, not the right thing to do. No harm, no foul.