Michael Bay may be notoriously difficult to work with, but that didn’t stop Shia LaBeouf from pranking the director on the set of ‘Transformers: Dark of the Moon.’

On Monday night’s ‘Late Show With David Letterman,’ LaBeouf said some people dream about getting screamed at by Bay since it’s like “getting insulted by Don Rickles.” And he described the director as “aggressive” and “demanding.”

Still, LaBeouf didn’t shy away from the opportunity to taunt Bay. LaBeouf said he actually replaced the director’s health drinks with cigarette butts and sunflower seeds, sending Bay into a “megaphone time” rant.

[AOL TV]