I'm not exactly sure how you realize one day you have a huge wasps nest in your spare bedroom, but for one couple in the UK that's exactly what happened.
It's estimated that some 5,000 wasps built the nest that was TAKING OVER the bed. They chewed (do wasps chew?) an 8-inch hole in the mattress.
The pest control guy said it took him hours to clear the wasps and by the time he was done there was an inch-thick layer of dead wasps on the floor.
I have a question: HOW DO YOU NOT NOTICE A 5,000 WASP COLONY SETTING UP CAMP IN YOUR SPARE BEDROOM?!
The pest guy said because wasps are silent. Seriously?
Here's a video if you want to know a little more...
(Photo YouTube screen grab)