While some people are lucky enough to be welcomed by their partner's family with open arms, mothers-in-law haven't got their bad reputation from nowhere.
An eye-opening new Whisper thread reveals shocking confessions from mothers around the world who really hate the people their children have married, reports Daily Mail.
One woman believes her son's wife and her family are "white trash", but said she'd never tell her son how much she "judges" them.
Another even confessed that she "detests" her son-in-law so much that she hopes he will cheat on her daughter and walk out on their child so that she can be rid of him.
Read on to judge for yourself if these are the meanest mothers-in-law ever.