Theres a brunette walking down a set of railroad tracks saying,21, 21, 21…

Then a blonde pulls up, gets out of her car, and says,What are you doing?

The brunette replies,Just counting.

The blonde says,May I join you?

Yes, replies the brunette. So the blonde and the brunette are now both walking down the railroad tracks saying,21, 21, 21…

A train comes and the brunette jumps off the tracks as the blonde gets hit. After the train passes, the brunette gets back on the tracks and says,22, 22, 22…