Use to be every now and then a wasp would get in the house. No big deal really. Just track it down and kill it. However this year We've already killed over 2 doz of these little suckers. I've been all around the outside of the house looking for nests, high and low and have found none. There's always nests in the barn but I keep em pretty much killed out there. I'm really concerned for my 9 month old daughter as majority of em have been killed on 2nd floor which is floor she and the 3 other kids sleep. Any one have any ideas for me?? Thought I'd call a exterminator and may have to soon!