A few years back at the Meltdown Nostalgia Drags, I stopped by the merchandise tent to pick up an event T shirt.
Imagine my surprise when I see that they were selling posters of an image that I had taken at the previous year's event.

Not a big deal, actually kind of flattering, but no-one bothered to contact me and ask permission.... The least they could have done was offer me press credentials to the following year's event for using my photo.