There's two types, though. The big brown bush cockroaches seem clean and pretty smart, and I really don't mind them. The shiny black ones (some with white dots) that infest your white goods? Those are filthy.

The big redish black ones, they are solitary and thank God for that. Luckily, never seen the small ones that infest in swarms.

Where do you live in Europe that doesn't have roaches? I live in Greece and the cities are infested with them during summer.

I've never seen once in Finland. When I lived in the UK I'd never seen one in the wild either, for that matter.

wait for the global warming to unroll...

Germany, Austria, Slovakia, Switzerland. We saw very few when we were living right next to a forest. In a city, it meant you either have bad neighbours (could be a construction site across the street), or your place is filthy :)

Friends at university said they have plenty in dorms, but a visit made it self-explanatory.

I've read yesterday that in some cities you have to inform authorities if you see a cockroach, and that's a law.