In Bonn, Germany, where prostitution is legal, hookers pay a "prostitution tax" to a ticket machine in order to have sex for monies. The fee is 6 euros (or $8.65) and shoots out a receipt to make the occupation official.
So you're a prostitute, and your client won't pony up the $200 to pay you for whatever you just did. In fact, he freaks out and flees the seedy motel room. Your next move? Jack his $2,800 MacBook, obvi.