TA thinks he's in Lambda

One of my TAs for my class is a freshman and says he's in lambda, it's the only thing he talks about. He constantly reps letters and started shotgunning nattys at office hours. Thing is, I talked to some guys over there and they got no clue who he is! Seems like this kid just threw on a lambda shirt and is claiming to be in a frat! Really weird antics someones gotta come get him