Because he was bean stalked.....
SPLAT!!! He didn't.
Because it had a bad motivator!
Because he was a dirty double crosser.
An animal that barks at low flying aircraft!
He invested in beanstocks!
His bean-stock went up.
Baked beings (beans).
Because if you added one more it'd be two farty.
They could be stalking you!
Because their stalks are always growing.