Quote from Janitor in My Old Friend's New Friend
[After the Janitor finishes reattaching an exit sign, J.D. jumps up and knocks it down as he walks by] J.D.: Don't look at me, it just fell. J.D.: [v.o.] Please, please, please, please, please, please, please, please, please, please, please, please, please. Janitor: Proceed unmolested.