Blind Someone Who Looks Vaguely Menacing With The Avurt IM-5
I'm sure I'm not the only one that finds the idea of this pepper-spray-bullet-gun vaguely disconcerting. Thankfully for me it's only available in the States.

Gizmag explain:
"The Avurt IM-5 launcher is a flashlight sized non-lethal self-defense device that has a longer range than Tasers and aerosol-based pepper spray. The USD$299 laser sighted launcher fires pellets filled with PAVA powder at distances of up to 40 feet, burning the eyes, nose and throat of the target.Designed by Security With Advanced Technology, the Avurt IM-5 uses the same effective pepper substance found in aerosol based weapons, but has a the advantage of a 40 foot range (ten feet further than Tasers), meaning that there is no need to be in close proximity to potential assailants when the weapon is used in self-defence."
As the type of person that routinely gets followed around the convenience store by staff members, even in my most resplendent fineries, I have to say I am wholeheartedly looking forward to being blinded by some jumpy granny who thinks I look like a mugger. Hoorah.