Never throw a lighted lamp at mother; You never know when you can find another. And I'm sure you wouldn't wish to see Ma lit up like a Christmas tree So never throw a lighted lamp at mother.
(Usually followed, on the streets of Brooklyn in the 1930's, at least, by:)
Don't never trun rocks on yer mudder. Don't never trun rocks on her head; Don't never trun rocks on yer mudder Trun bricks on yer fadder instead.