Hm. I must say that I like the way your mind works on this sort of issue.
And I agree with the Zero Tolerance policy on house flies, mosquitoes, and cockroaches.
Over twenty years ago, in the early 1990s, shortly after the collapse of the USSR, I was awarded an EU travelling fellowship to send a few months in the Baltic states. I rented a lovely old flat - a really gorgeous 19th century place with high ceilings, those lovely double doors that you see in central Europe, wooden parquet floors, original modern art work on the walls, and an outstanding library which contained some very interesting works in five languages, (not that I could read them all) in the old town in Vilnius, the capital of Lithuania. However, it also had a few of those hideous scuttling visitors, - not many - but they were persistent visitors.
My Lithuanian hosts - missing the point somewhat, I thought - actually missing the point completely, if I am honest - inevitably, and hilariously, blamed the Russians. "The Russians brought the rats, and the cockroaches and bad language to our country," I was informed solemnly and with great certainty, the ken of certainty that brooks no contradiction or dissent. "There were no swear words in this country or in our language until the Russians came."