We have a sliding door with a sliding screen that gets left open frequently. And we back on to a swamp. The other day Dot screeched at someone who had left the door open, "You are letting six million bugs in!"
This naturally led us to wonder if six million bugs would, in fact, fit in the house. We determined, based on a loose packing of ten mosquitoes per cubic inch, that we could fit 172 million mosquitoes in a modestly-sized home. Thus, letting six million bugs in became a real and disturbing possibility.