Tallest kid on my Highschool team was 6 foot flat.
Standing at 6'4 the coach asked me to go out. I told him to eff himself. In very nice terms. Too much running for my fat ass.
After this you should have put on a dunk show, power moves, box outs etc. in PE in front of him but then told him you only play for the game. Not for recognition and then tossed him the ball.