Moving your body when you don't have to (aka people are weird)

[inside??]

Duck on a roller coaster when going over a hill with another track overhead.

[guids]

I do all those in the OP. We used to have season ticks right behind home plate at the cardinals games, Whenever Id take a firend, we would have a standing bet, wheneter a foul came at us, the one to flinch has to buy the other a drink at the bar afterwards, its damn near impossible for me/most of the people I took to not flinch.

[youtalkfunny]

You'll love this one.

Guy used to come into the race/sports book I worked at, and play the puppies. If his dog wasn't winning, he'd put his finger on the screen of the little tv in front of him, and try to push his dog up toward the lead.

When the dogs turn for home, they're going from left to right on your monitor. This guy would always lean WAAAAAAAAAY to his right during this part of the race. One time, he actually leaned a little too far, and fell out of his chair. I swear.

[GTL]

When i read this thread title I thought it was going to be about getting off the couch to change the channel if the remote was out of reach or yelling untill someone else came in and got it for you.