That's gotta hurt, to have her die like that. But I see and hear it all the time these young people revving the sportbikes as proficiently as the HD guys blipping the throttle. It's an art. But riddle me this: didn't you race the carp out of stuff when you were young? I know I did. Damaged more than one motor and totaled more than one vehicle in my day. Yeah, it's a shame but that's youth. Maybe you should have passed on the sale. Being one of the "if you have to say it" situations you probably knew it deep down. Plus by saying not to you basically double dog dared him to.
Words aren't children and there's nothing wrong with killing them to clarify a point or keep the peace.