Well, Keef Richards did smoke his dad’s ashes...
“I recently read an interview in Rolling Stone, where he advocated that people should not do drugs, KEITH RICHARDS said that we should not do drugs. Keith, we can’t do anymore drugs, BECAUSE YOU ALREADY ....IN’ DID THEM ALL! There’s none left, we have to wait until you die so we can smoke you’re ashes, alright!”
-Dennis Leary