All my best movie lines come from Ghostbusters :-)

"Don't cross the streams!" - Spengler
"Ok, important safety tip. Thanks, Egon." - Venkman
"Well that wasn't such a chore now, was it?" - Stantz
"I collect spores, molds and fungus" - Spengler (particularly useful when someone asks what I do for a living)
"I feel like the floor of a taxi cab" - Spengler
"Why worry? Each one of us is carrying an unlicensed nuclear accelerator on his back." - Stantz (useful at work)
"I don't have to take this abuse from you, I've got hundreds of people dying to abuse me." - Venkman (useful at home, in a playful way :-))