I have read several pepper spary adds online, Firefox 5.3 mill shu with 2%. there is the higest shu. Wildfire 18% 1 or 2 mill shu, mace 110 % 1 mill shu and on and on. so many all say From Gel ,Foamr Coan And Stream all the brands say theres is the best. and the others no good. So which one does stop and incapacities a person a attacker?