In the early 90s, went up to a kid from Concord Carlisle, one of the better runners in his conference, who also happened to be jewish and said:
"You're a fast runner for a jew"
Went up to a dark-complexioned exchange student from Australia who was competing in a track meet at Weston HS and said:
"I didn't know there were ni__ers in Australia"
(you know what the full word is, I'm not about to write it out)
and of course the various and sundry girls over the years who were made uncomfortable by him basically stalking them at meets. I coached a few myself, always fun to explain to him that it's not cool to chase girls running alone on their cooldown.
That head injury affected his personality in many ways, not all of them so entertaining. Think Phineas Gage.
This is no newsflash to anyone who's met him, but he's lost much of the ability to determine what's appropriate vs. inappropriate. It's just a question of how much of that skill was lost in the motorcycle crash that caused the closed head injury.
BTW before that he was a runner at Keefe Tech.