We have burger vans everywhere in my part of Wales. They usually park up outside of factories etc and make good money. They also park near but not too near to schools, to harvest kids. Naturally I visited them in school. I should've been a lot fatter.

They are great but the food is often terrible. It's a secret shame kind of deal for me. I once had a hot dog from a van man who also owned a butchers. It was more expensive, but it was incredible. I wish I could find it again.