I played a lot of pick-up ball back in the day at the Quads on College Ave, with some very good players (my 2 neighbors in Hegeman were very good players, with one of them walking on for a year at RU). I wasn't a great basketball player, by any stretch, but I was 6'2" with decent speed and a 36" running vertical, so I'd get some dunks and garbage around the basket and could defend (couldn't shoot from outside or dribble well, though).
With that as background, one day I was guarding a guy (who I hadn't seen before) who was my height, as one usually does in pick-up games and I think he underestimated me a little. He received a pass on the wing and put up a lazy shot and I jumped up and blocked it towards midcourt and was first to the ball, took off to the hoop and threw down a reverse jam.
The guy whose shot I blocked was Brian Ellerbe - my friends were hooting and hollering. It was my White Shadow moment, lol. Of course, next time down the court, Ellerbe made me look pretty foolish with a crossover and easy drive to the basket. Was a fun game and Ellerbe was a very nice guy, as a bunch of us hung out at my friend's dorm room afterwards.