Reminds me of a time when my oldest daughter was younger.  I went in to my bedroom to get something.  I noticed a wasp right in the middle of my bed.  I walked around the bed to get a book to smack it with, but before I could turn around here's my daughter belly flopping on the bed right on top of it and got stung. 

Also, around the same time, one night I walk around the bed in the dark and stepped on one of the buggers and it stung me right in the foot.  Come to find out there was a nest between the storm window and inside window.  Storm window wasn't shut all the way and they made their nest and was finding a way inside.