The cut you get on your tongue when you're trying to find out how many licks it takes to get to the center of a tootsie rolltootsie pop, and the candy develops a nasty, sharp, edge.
A vehicle traveling ten mph slower than the speed limit in the left lane of the freeway (a.k.a the fast lane) gabbing or texting on their cell phone with a line of vehicle behind them.
Driver: I HATE THIS IDIOT IN FRONT OF ME. I can't get by and I see them on their cell. I WANT TO RUN THEM OVER.