I've just remembered another 'friend'. Looking back she was pretty bitchy and sneery, but it was a good year before I realised how unpleasant she was.
She reads the daily mail, takes it seriously and links it to facebook. 
She went away and asked me to run her shop and feed her cats. She never had customers so wasn't a big deal and she was going to pay me a small ammount to do it.
I did it. Worked Thursday, Friday, Saturday and did my usual job on Saturday night. Shop was freezing and filthy (so was her house so I don't think she realised how bad it was). As I said, no customers so I cleaned up and tidied while I was there. She wouldn't pay the council for a bin so I carried the bin bag home with me to disposed of.
She picks up the key on the Sunday evening. No word of thanks. No money.
I go into the shop on the Monday, make small talk at the counter with her for fecking ages. No mention of money.
Get a text Tuesday. If I come in after 2pm she'll have it for me. I go in at 2.30pmish, she sneers at me over her glasses and spits at me 'I don't have your money.' I ask why and I'm told that her husband only just left to get it but won't be back for ages. Honestly, she looked at me like filth. I reckon she had no intention of paying me.
I go home, have a rant on my SiL's facebook wall about it. My DP sees how upset I am and drives around to her house to ask for it. He brings it home. I write off the friendship.
The next day I get a text from her asking if I'm home. I felt it was none of her business so I ignored it (think I was in Tesco at the time). A few minutes later and I get another text askling if I can mind her shop again that week and feed her cats. I say no, obviously. My excuse is that I have my own job to go to (true). I'm just paying for my shopping and I get another text telling me they've put their key through my door for me to feed their cats.
They didn't even ask.
Muggins here feeds the cats - I do like cats.
On the Friday I get a shitty facebook message from the 'friend' telling me that 'she has no idea what she's done to offend me but she doesn't deserve to be slagged off on a random facebook page and not to bother feeding the cats on the Saturday, she'll get someone else to do it and she'll pick up her key on Monday --when she knew I'd be sleeping ready for a nightshift'. She also copied the message to my DP for no reason ast all.
Clearly she'd trawled through my facebpook page reading all of the posts I'd put on other people's wall. Can't run her fecking shop or feed her cats but can stalk people on facebook for hours.
I did reply relling her what she'd done but I don't think it went in.
Obviously we no longer speak.
She seems to have done this to a lot of people. Her own family don't speak to her, her in laws don't seem to like her and she has few friends. I get the impression she treats a lot of people very poorly.