Yeah, I meant .08. My bad.
Really, you just have to know your limits. Everyone is different. The size of the person matters as well.
I don't think anyone should drive if they had more than 5 beers though (in a relatively short amount of time).
But anyway, JJ was drunk and got caught. It happens to a lot people and he was dumb for doing. Just like all of us who got caught were. It doesn't make him a bad person though.