I live in an estate with one parking space per apartment. Quite a few of the parking spaces are never used because people don't have cars. I've lived here for years and know which ones they are. Also I am brassic. If I advertised on a parking site that they were available to rent, and collected money, even though they're not mine, what's the worst that would happen? I don't mind paying money back but I don't want to go to jail.