Naaa, don't worry - nothing quite as serious as that.
But honestly, as soon as the Chesterfield link came up, I remembered some more. Apparently these were men of esoteric interests. And by that I don't mean collecting bubble cars.
The thing about the internet is that several sites come up, but they all are rewrites of each other. The guy at work said these were either Isettas or Messerschmitts, but I guess the uninitiated always come up with those two names when micros or bubble cars are mentioned. The more knowledgable remember Heinkels and most younger people think about 'Robin Reliants' (sic) or disabled carriages.