(The Pitt fight song was recently rewritten to take out a pause during which "Penn State sucks!" was screamed. It's a one-sided rivalry, because the teams haven't played in a long time. Pitt would be happy to play Penn State again in football, but PSU demands two home games for every one played at Pitt.)
I don't actually hate Penn State, I just think the pseudo-rivalry is hilarious. The best part of football games is when a chant of "Penn State Sucks!" starts for absolutely no reason.