When I was in my 20s I had a small (well, just me) business cleaning up and detailing yachts, mostly to prep them for sale, sometimes just to brighten them up. A few times the owners (middle-aged, successful businessmen) assumed that sexual services were included. One of them didn’t know how to swim, so I graciously tossed him a flotation cushion after dumping him in the water. So, I guess I “fired” 3 clients.