They like to keep their own feet intact? Why bother if you only drive...
As it happens, a long time ago I had a lot to do with smallarms - almost always for purposes of employment, firstly inside the military then not. Never, ever, mixed with alcohol. I applied a firearms version of the 12-hour-bottle-to-throttle rule used in aviation. I was in circumstances (especially on the civilian side) where that wasn't a legal requirement. But it was my requirement. OK, so I was a bore (don't even ask small-bore vs large-bore; just a bore). But I don't limp. And don't suffer from worse. I've met people who do, directly from not applying a similar rule. I'm thankful I've not met anyone who has injured another for that reason, though I'm aware all too many have.
...Mike