Usually the protocol.. No need to be mindless drones though, but safety is of the up most importance.You come at me with a pair of scissors and I'm going to shoot you.
Sure enough,but I'd still refuse to let someone get close to me with a pair of scissors.
21 feet is the rule of thumb
Yep..
The amount of time it takes to close.
exactly
Unfortunately,or fortunately depending how you look at it,libs dont understand that.