Schwartz: When you see 1-x^2, what do you think about? Hadar: Trigsub! Schwartz: No! Noooooooooooo!
// Schwartz advising against using the integral test Katz: But I love doing the integral test, especially with trig subs! *Schwartz wheezes* Schwartz: Now you're just trying to give me an aneurysm!
Schwartz: *Going over our multivar exam and notices someone wrote "I love trig sub on the board"* Schwartz: ... What? I love trig sub? What degenerate wrote this. There's something wrong with that person.