I vaguely knew someone from the next village and bumped into her at the shops and she asked me round for a cup of tea the next afternoon. She'd baked a delicious cake and we chatted, got to know each other a bit better although I was a bit suspect of some of her statements "yes I used to be a professional dancer", "when I was head chef at XXXX (famous London restaurant)", "I was selected for those Olympics""!!!!!
Not that this couldn't all be true but seemed very unlikely, anyway each to their own.
A while later she contacted me about something and I invited her to my house and said, (lazy cah, can't bake), tell you what we'll go to our village pub and have a bar lunch, my treat. She comes into my house and then off we went and when we got there, went into the bar and got the menu, lots of really lovely sandwiches with chunky chips, that sort of thing. But she kept stretching her neck and looking into the conservatory out the back and eventually asked what was in there. It's the posh restaurant so I just waffled over it but she persisted and ........you know what's coming, don't you, I was too much of a wimp to say no and I ended up paying £48 for lunch for two on a bloody Tuesday, FFS!
Strange thing is that if it had been a good friend I wouldn't have hesitated in saying, no you cheeky cow, we're not eating in there unless you're paying! My sisters couldn't believe it or the fact that I allowed it to happen, I'm not known as a pushover!
It gets worse! Didn't hear from her for couple of weeks and then received a message from her saying that she'd remembered I said I was going away in September, and her daughter was now getting married then and that she had family coming from miles away. However she was finding it hard to get them all into the same hotel and it was so expensive, blah! blah! and she had talked to them and had suggested that they could stay in my (empty) house that weekend (TEN of them!) and they all thought it was a great idea, thank you very much!!!!! 
I honestly had to read it through several times to see if it did say what I thought it said. It did! She had been in my house once, for 10 minutes, I'd met her on her own exactly twice!
Was tempted to just ignore it but was worried they might all turn up anyway on the day, imagine, so just wrote back congratulating her on the wedding news and said (big fibber) that I wasn't going away now, change of plans.
Was desperate to also tell her what I thought but as it happened I never heard from her again!!!
Strangely enough have since found out that she definitely knew where I lived before she had asked me round (assumed ignorance when I told her) and wondered if she walked round the village looking at 'suitable' accommodation and then set about befriending the people who lived in them 