I've never been in a nasty hate your guts breakup and was just curious what was some of the crap others have put up with?

Jude’s question had me wondering what some people are capable of and what they do to a former lover in a breakup. Have you been through a messy one and are willing to share some of the info? You can be as discreet or as detailed as you like. Or just state what you’d like to do the the ex if you could do anything at all with no consequences.