How do I convey "you're thick as shit and seem to have given up on your own kids" in a relatively nice way?
I would say make a sarcastic remark about their parenting skills when the topic comes up, but they probably wouldn't understand that you were subtly insulting them anyways.
I would say make a sarcastic remark about their parenting skills when the topic comes up, but they probably wouldn't understand that you were subtly insulting them anyways.