Infesting versus invading!

I recently was watching a video on youtube of the Irish comedian, Tommy Tiernan. He contrasts the Irish style of global domination to that of the English: whereas the English favoured invading, the Irish preferred infesting. A sort of global domination by stealth; two people arriving in a town armed only with a sleeping bag and a phone number. It seemed pretty accurate to me, funny too! Here's the video link. N