LOL! That's part of the reason I won't drive after even 1 beer. I'm afraid I will start enjoying the ride too much and get myself into trouble!
I've always made it a rule to never drive after even one. I never had any problems, but I don't want any either. I figure it's just better this way. I don't ever really get drunk, just sort of get to a nice comfortable cruising altitude and stay there for awhile before coming back in for a gentle landing. That way I could drive if I absolutely needed to...but I won't...unless it's an emergency.