ALICE training is a big deal lately at my work. Pushing (but not requiring) people to attend. A key component is to find something around you that you can use as a weapon. If it's all the same, I'll use what I brought from home...usually on my right hip. I understand that for a lot of these trainers, they are told not to recommend carrying a firearm, but can't we be honest? I'd rather have a gun during a gunfight than try to use my desk chair as an improvised weapon.