British “sports” car owners, particularly MG owners. They’re completely delusional about the wiring issues, and snobbish about such stupid bullshit as closing the hood.

My dad bought a 1979 (I think) MG B a few years back and tried to hook up with some local owners. He quickly learned that the most common/recommended modification to those cars is a battery isolator (because you will NEVER be rid of parasitic draws), and was equally-quickly yelled at for closing the hood wrong. It was enough for him to distance himself from the others, but not enough for him to realize that the car he bought was kind of garbage.