Anyone remember the Fellowship trailer? It featured Aragorn and Gandalf on Caradhras with this exchange:
"He's trying to bring down the mountain! Gandalf, we
must turn back!"
"
NO!"
Now, funny thing is: Gandalf doesn't actually shout; he just says 'no' quite normally. But for some reason, my friends and I think it's very funny to scream it as loudly as possible. So whenever there is snow, we re-enact the scene, much to the bewilderment of passers-by.
Also, on nights out, when you invariably spill a drink on yourself and get your hands messy, you have to utter
"It's sticky!" in a rabbit-caught-in-headlights voice.