Kyson Vs. Dog

So Kyson was bite by a dog a couple weeks ago. He walked away with scratches on his leg. The same dog was allowed around him again (not by us) and it SNAPPED at him three times. WHAT DO YOU DO WHEN THE OWNER JUST BRUSHES IT OFF?! I say don't go over there. The dog is not allowed anywhere near my son and I don't want to take him to that house while the dog is allowed to rome wherever it wants. GRRR! I'm sorry but if that dog struck blood on my son...HECK TO PAY! That dog would not be living right now.This whole situation has me sooooooo ANGRY! I hate that dog and I never want to see it again!