He didn't have the guts to fart
A fart taking the elevator.
He has to have someone to blame the farts on.
Joke was supposed to be this: Why do you need to take notes during church? because the peoples of noah's day, "took no note".
A holey bible. And, yet, it still made more sense than Scientology.
Because he had no guts.
It takes guts.
Because he didn't have the guts to fart.