
Well, I play Dungeons and Dragons multiple times a week, so I have to actually think here.
Either when I put a box over my head and Metal Gear'd my way through my high school as a senior prank.
OR
When I ran into a Wal-Mart, all frantic like, and nearly screamed at the cashier "WHAT YEAR IS IT?" And when she told me I ran away screaming "IT WORKED! DUDE IT WORKED" (My best friend had made me do this.)
Or it can be a few months ago. I was sitting on the couch. My room mate had her kids over and I was watching tv with the youngest in the living room while the oldest was with her mom in their room watching movies on the Wii. All of a sudden I hear like four words coming from their room. I jumped up, leapt over the couch, and ran to my room mate's door. I stood in the door for a second and said, "I heard Doctor Who."