Some people rate themselves better than others and need to boost their ego,s.He,s a jerk ignore him.If it was me I would let it be and if it continued wait until he,s on his own grab his nuts pull them approx 2ft away from his body and put a nice 90degree twist on them then ask him what his problem is.He,ll back down no matter how big he is.Either that or punch him hard in the throat.

..........But we don,t promote violence on this board so ignore him and show him that he may be bigger than you but you are more of a man as you don,t need to rise upto it.He,s a weak,cowardly asshole,just remember that.