“Wasp spray may be better than nothing, but pepper spray is almost certainly better than wasp spray.”
I have long been a proponent of Wasp spray. All of my vehicles have it in the glove box. Never had to use it or pull it out. We do have a large infestation of hornets in our area. We also have Yellow Jackets (hence the name Georgia Tech Yellow Jackets). I also have Epi-Pens if the need arises.
Is bear spray legal to use on humans? I would think that there would be some restrictions if there are some for wasp spray.