was surprising to me that this got downvoted, but looks like that trend has reversed. I can only add that I would much rather use this to kill flies and mosquitos in my house than a chemical spray. It sort of works on wasps, but mainly just knocks them down and disorients them. This can be enough sometimes to get a shoe or something else to crush them. The fact that its a 'gun' can add some sport to it, but at the end of the day I use this thing when there is a pest in my house/porch that I dont want. I dont see anything wrong with that.