They both begin a trip at the post!
Because you don't know who is going to make it to the end.
To stop getting wet!
Nothing because ghosts don't exist. Edit:Holy crap I just realized I didn't post this on /r/antijokes.
Cuz he couldn't see it (Probly already posted but I've never seen it on r/jokes before)
Capital letters.
They want to catch the last goal-post!
Eiffel.
To trip ants.
They're both off and running.