Bait & Switch...  ads with pictures not her own or seriously out of date or sends another provider

Runner or 'cash & dash'  Grabs the cash & bolts for the door.

Runner or 'take off' After recieving the cash, announces she left the condoms in the car, goes out to get them & runs.  

Runner After recieving cash, does not have condoms, you drive her to the store, she runs...

Runner After recieving cash, does not have condoms, you drive her to the store, you wait outside, she tells the clerk a story (coersion, pressure etc) is let out another door...  she runs...  

She promises/implies services which are withdrawn from menu after payment.  (This refers mainly to large scale changes)

The switchero  First review BBBJ, later customers CBJ.  (Check later reviews)

Reviewed:  Link to TER or other reviews.  Take he time to read the reviews.  Existance of reviews does not mean they are good reviews!  

Up sell:  She collects payment & suddenly services are extra cost.

The Banker:  Asks for cash advances or loans, sometimes to be worked off or repaid in cash... then refuses your calls or disappears.

Thief:  When you are not looking, items or cash disappear.

Scout:  After appointment your residence is burlarized.    

Blackmail A provider finds out too much personal information about you, and threatens to post or give out your information to who ever (job, media, family) in exchange for money.

She seems legit, you are getting "comfortable" and all of a sudden some big ape is pounding on the door or busting down the door and you just want to get out of there with your life.

Or girl or her thug block your exit and you aren't allowed to leave unless you give them all the money you have in your possession.

Or the ones where she is stalling for time, you may be undressed but she still has her clothes on, she is doing a little dance, strip tease, etc, mostly dressed. Outside one of her friends is breaking in your car and stealing anything and everything they can find of value. The session doesn't actually happen, she's stalled long enough that you pretty much know you've been screwed, you go back outside to find your car's been broken into and she acts like she knows nothing about it. (I read a review on another site where this is standard MO at this girl's incall).

I also read a review the other day where the girl took the money and then went to the bathroom and locked the door, and didn't come out - the guy waited 4 hrs and she did not come out. (said she had a computer and phone in bathroom with her btw).        

Those scammers are very slick... they have the move all planned & can even be out the door before you can protest. There are some who should be in the Olympics... track team! Many of the scams work best (against us) on out-calls to your home or hotel room. Place the donation well into the bedroom, not near the door!

I should caution that it's illegal to physically lock someone in or physically restrain them... think kidnapping or unlawful restraint charges... we don't have to make ourselves look like an easy mark! This is supposed to be FUN! Again, well reviewed providers are the best bet for newbies & the risk adverse.  

Feel Free to add any I missed!