This is a video of John Hickey's Pontiac Gran Am. Specifically, one of the air vents that goes nuts when you put the A/C on full blast. It's pretty mesmerizing. The sort of thing you could really get lost watching before realizing you're driving on the sidewalk. That said, this might be the first decent reason I've seen to own a Pontiac Grand Am.
Keep going for a video.
Thanks to Dunc, who took the time to tell me his Altima's air vents operate normally. Finally, I'll be able to sleep at night.