Seems mostly used while driving, since people can't hear each other as well. The most memorable use in a movie is probably from Naked Gun (around 2:00). My driving instructor never told me all these important tips!

I hold the opinion actions speak louder than words. Therefore, when I do use it, it holds that much more impact. My whole family is the same way, so if I'm bumping around with my brother and cousins, it makes using it in fun all the much funnier, or if there's a fight in the family, we know when we've stepped over the line.

When you save something instead of tossing it around, it means more.

I have a problem, when I keep thinking of the middle finger, this image fills my head.

http://i626.photobucket.com/albums/t...in-powers-.jpg