Whoever started the wasp spray myth as a defense should try it for themselves while under attack. This is totally debunked numerous times; countless Youtube demonstrations are about it. I accidentally sprayed myself with some wasp & hornet killer and it had virtually no discernible effect on me. Try your wasp spray on a chipmunk. A human attacker on drugs are known to be unaffected by gunshot wounds. Wasp spray will barely drop a bee, why would it work on a 270lb drug-intoxicated aggressor? Magic? If you don't want to use a gun there are numerous effective alternatives: stun guns, super bright flashlights, pepper spray, sirens. Pepper spray with a dye would be my number one choice.