Crossword puzzle clue "you don't play it at home"

"All right, brain, I don't like you and you don't like me - so let's just do this and I'll get back to killing you with ___": Homer Simpson

You don't play it at home

"Da Da Da I Don't Love You You Don't Love Me Aha Aha Aha" band

"You still wake up sometimes, don't you? You wake up in the dark and hear the screaming of the lambs" speaker

Beastie Boys "You can't, you won't and you don't stop" song

General Erwin who said "don't fight a battle if you don't gain anything by winning"

Person you don't want to play peekaboo with?

If you can't play guitar, don't ___