I've already used this quote and don't wanna use it again (on wutever I'm doing). Can you think of any others with the same or close meaning?
"ppl don't kick a dead dawg"
Flogging a dead Horse, trying to squeeze water out of a rock,
Can't think of any others at the moment, I'll get back to you
Can't think of any others at the moment, I'll get back to you