So the dealer admits to doing wheelies on your bike and one of his flunky mates was messing around with it and it needed to be repaired after that...
..and you took it back to him again??
seriously, if you don't feel comfortable confronting him or his mates about it don't but then again , don't act like some poor biatch with battered wife syndrome and go back for more!
I don't care if he "seems like a nice guy" he's taking the piss.
Give your $$$ to a dealer that shows you a little more respect. I don't understand why this is even a forum topic...isn't that just common sense?