What about fat fleas in British houses?
Apparently there's a bit of an epidemic of them at the moment. I got bitten while staying at a friend's in London not long ago. The household was a Polish one, and they were all bitten too.
On the subject of bugs in Poland, I remember a
dezinsekcja company knocked on my door in Warsaw offering their services. I refused, because I didn't have any cockroaches. About half an hour later, I saw the lady who knocked putting cockroaches under my neighbour's door!