I responded to this ad although I was suspicious of TGTBT photos.  The location was a private residence and once inside I noticed that (no surprise) that she was not the girl in the ad's photo, even though she insisted they were both on the phone and in person.  She had a similar body type and was ok looking but I was getting nervous about her attitude and the atmosphere.  She was not well groomed and there were signs that others may be present.  She started escorting me to a bedroom that was a total mess with the bed linens obviously not fresh, and I had noticed on the way that the bathroom probably hadn't been cleaned in weeks.  I then told her that I was not comfortable with staying and started to make my way out.  She said I still owed her for her time and she blocked my exit with her body, I was able to force my way to the door and pull it open as she push against it.  I finally prevailed and got out of there without further trouble.  She threatened to call the police which of course was a bluff so I simply responded - please do and got the hell out of there.

...on not letting the little head's anticipation lead over the big head's sound judgement

Ad says "100% Real Pictures".  I guess thats probably true...just not of her.  
Don't ya hate it when you walk into a place that looks like that?!
You did exactly the right thing by walking out...and thanks for the heads up.
They are nice looking "Real Pictures" though!

And getting the fuck out of there.