I have found that picking your nose while driving can be a very dangerous activity. I slammed on my brakes this morning on the way to work and nearly impaled my brain...got the booger, though!
Reminds me of the movie Vadaction when Chevy jumps the Family Truckster and Anthony Michael Hall, a.k.a, Rusty stabbed his brain. That was funny.
What's with a booger, anyway? I think they actually disappear from existence once flicked, unless they hit something like a shirt or a person...seriously, have you ever found an old booger? Neither have I.