Hide in an prostitute's cupboard, and sneak out and take the $50 from some "client's" wallet, while they're doin the hibbidy dibbidy.
Also, video tape it if it's someone famous. Blackmail them.
Or set up a webcam, and establish a website called "WhoreCam". Charge a $1 membership fee, and then plaster the place with porn ads.
Career move!