A lot of fakes in my area use pictures that look someone similar to them (especially the Asians since they all look the same) and basically take your money and run. This can only really be done for outcalls, a lot of them use the excuse they need to pay their cab driver or they forgot something and you never see them again. I've heard of incalls where you go there, hand over the money and then like you said, some guy comes out of nowhere and threatens to kick the shit out of you. BP is too risky. Even if the girl isn't fake, there's no guarantee the service will be there. A lot of them are very mechanical and once you hand over the cash, they just want you gone.