When people make comments like that. I stay silent. Literally.
There is no point arguing with a guy who says **** like that. It will go no where. The fact he feels that way, you won't change his mind. I mean what are you going to say? "Nuh uh, no he is not. Look at these stats bro(Loads up the net on the phone) See!" Yeah ok, because he will listen.
I've had it happen to me before at the gym, b ball courts, ect. I just don't say anything, and get back to y workout or try and get the game started.
http://img843.*************/img843/8676/iseeu.png