Scream 2 (1997)

I always find such pieces of dialogue as seen below quite fused with the slasher genre. These films have some character say "We are about to have the time of our lives!" or "I'll remember this for the rest of my life!" In Terror Train (1980), these cats think the train ride which is to end their college experience will be one of great revelry and maybe a little naughty behavior. But it never quite goes according to plan...or ends well.

It all stems from a mistake. Made in jest. A bit of comic relief that wasn't intended, perhaps, to result in murder or psychosis. Oh, but the end result is murder and psychosis.