Its only happened to me once, decided to make an outcall to my flat, so booked the escort on-line AW, and waited
8pm arrived, and she knocked at my door, once she saw me, she walked straight back out, no explanation, so had to ask her a few times
Turns out she had seen me at the bus stop the day before, and she thought I as stalking her, in actual terms I was getting the bus to go and see my mum