Maybe he was trying to do it "properly", but the dog wasn't having it and spun and bit him? A crotch is about mouth level on that dog. Could be legit an attack. Just spit balling, here. It would be like that guy attacked by the chimp that ran amok and but his junk clean off. Who knows?
If you get to thinking you’re a person of some influence, try ordering somebody else’s dog around.