I went to put on a clean sweatshirt yesterday and found a live, but rather torpid, wasp inside of it. Luckily I spotted it before it had a chance to sting me. I assume that it must have entered the house earlier in the year and then a cold spell put it into a state of 'hibernation' (if that term applies to insects?). The slightly warmer weather, we've had recently, must have woken it up and it decided to take refuge in my sweatshirt.