Stealing from Johnny Carson you are stealing from the best

The line one of the mobsters uses toward the two incompetent hit men about improvising "you two could not improvise a fart after a 3 bean salad," is awfully close to Johnny Carson's comment about the adlibbing ability of Chevy Chase when he said "[Chase] could not adlib a fart after a baked bean dinner. Maybe this is why the author has never been heard from again. This movie could have been so much better.