What do a baby and a rock have in common? They both make a loud noise when thrown at a window.
Are you making a joke and do you find this humorous?
It's just a joke. What's the problem? Nothing
While making a joke is easy, it's important to be mindful of true victims of childhood abuse. People truly have suffered trauma and while it might be a dark joke to you to laugh off, it is genuinely harmful and detrimental to others.