21, 21, 21

There's a brunette walking down a set of railroad tracks saying,"...
" 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," ...
" 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...
"