The first time I saw a prostitute, I had no idea. I was working at the hotel and some lady came in wearing a trench coat and high heels. She walked directly to the elevator. 15 minutes later, she walked out of the elevator and left the hotel. Here’s the logic, in case you ever need to write code for Grand Theft Auto:

If Time=Late
If Duration=Less than an hour
If Shoes=CFMP (Come Fuck Me Pumps)
If Clothes=Trench coat and stockings
If Interaction with hotel staff=0
If Frequency of Visits=Every so often
If “luggage”=Big baggy purse
Then Job=Hooker