From the Woody Allen film Take The Money And Run
. Inept bank robber Virgil Starkwell
hands a hastily-scrawled holdup note
to the teller
, she reads it aloud:
"Please put $50,000 into this bag and abt natural, because I am pointing a gub at you."
"That's 'gun'. I'm pointing a 'gun' at you."
"No, no, that's definitely a 'b'."