Last week I had another timewaster  named 'Ali'. He saw my ad on vivastreet. He sounded asian with a strong accent , possibly Indian or Pakistani. He asked for an outcall and was fine with the price, but very brusk sounding. sounding,  (Alarm bells were sounding, but I ignored them.  He kept asking how soon I'd be, I said as soon as possible and that I would order a cab. He expected me to be ready to go immediately after his first call! When he called back I booked a cab and he seemed happy and gave me an address, but when I got there number  was for the whole building, not  for a flat and I did not know which flat was his. I tried calling him, but then it kept going straight through to voicemail. I was annoyed that I had gone all the way to his for nothing!
His number was: 074051717**
Thanks,
Sasha X

Thanks for the advice. Will do that in future, although people are often reluctant to giave their landlines. I guess I should just say I can't go if they don't give me all the info I need.
Sasha