"Goodbye, Mr. Heckles. We'll try to keep it down" - Spoken to an eccentric bachelor in a bathrobe  Monica (Courtney Cox) and Rachel (Jennifer Aniston) on the situation comedy FRIENDS/NBC/1994-2004.

Mr. Heckles (Larry Hankins) lived below  routinely banged on the ceiling with a broom to tell the girls to be quiet. After  he died of a heart attack during one of his broom banging episodes, ("The One Where Mr. Heckles Died") his lawyer informed Monica and Rachel that Heckles had left all his worldly possessions to the "two noisy girls upstairs."

As Rachel, Monica and friends looked through Mr Heckles' stuff, they noticed for the first time just how noisy it was when someone walked around in their upstairs apartment.

The last to leave Heckles' apartment was Chandler Bing (Matthew Perry), a fellow building tenant. As he closed the door, Bing looked back into the room and said, "Goodbye Mr. Heckles. We'll try to keep it down."