[Badboo]

Bad advice. Check the youtubes. One guy takes pepper spray to the face, falls to his knees in extreme pain, can’t do anything but cry for water, worse pain in his life he says. In another session he takes wasp spray to the face. Hurts but doesn't stop him from walking and bring agile. If he was after you, all you would have done is piss him off.

[Hootowl]

I dimly remember a study from some years back that said wasp spray was ineffective in deterring an aggressor. Still, I suppose you could smack an attacker pretty hard with the empty can.