I'm probably unreasonably holding a (mild) grudge here, but every time I get a spam email from Wisconsin Engineering asking for donations (no matter how many times I mark these emails as "unsubscribe and report spam", they somehow manage to keep singing me up for more lists that evade Gmail's spam filter), I think about the year of my life they made me waste to fulfill a bunch of pointless requirements and don't really feel compelled to donate.
@danluu I had a CS professor at Virginia Tech who trolled me just because he was annoyed that I had a 105% average in his Operating Systems class (despite rarely attending) and singlehandedly cost VT every dime I might have contributed. Petty beef is real.