Okay so I used a local hairdresser who was very rude and I'd never use again. I mentioned on facebook and twitter that I'd had a bad experience and that I'd PM the name to any of my friends who wanted it.
So I sent the name to several people via PM. It wasn't public at any time, however said hairdresser has now contacted me threatening legal action for slander!
I didn't put anything publicly, only through PM to who I thought were friends, so I thought that wouldn't be illegal, its called PRIVATE message for a reason, right? Plus, my comments & experiences were 100% genuine.
This woman threatens legal action to everyone I'm told, and sends lawyers letters to everyone but nothing further happens, she seems to like causing trouble, however I'd hate to have to fork out for lawyers letters back and forth.
Thoughts welcome.