I have fallen foul of the behind the door trick many a time. I now have a set routine for these events. If the girl hides behind the door and is not as advertised, I quickly ask to use the toilet...whilst in the bog I make my plan of action...firstly if the bog is a state, thats a big strike even if the girl is decent. I will have a quick check at the banger see if he is responsive and then decide if I can go through with the punt. If I can't then I go through to speak with them, act like Im taking my kit off, they ask for the cash first, I check my pockets incredulously and find I have forgotten my wallet. I then bail. I've had bad feedback on AW for it but fuck them.
Last week I had sunglasses on because I was stoned to fuck, I put them on the bedside table, she came in and I could smell her fanny from 5 feet away, went to bog, did my wallet routine then left without my oakleys...I had to go back and chap the door and she hid behind door again but stayed there, I walked into bedroom got ma specs and walked straight out without her moving from behind the door, which she slammed on my heels. £100 saved, I went home for a wank.