That said, the "drunkest" I've been is after 13.7 standard drinks and the fact that I was able to keep count makes me doubt that I was that drunk to begin with. All in all, a very over-rated experience.
That's a pretty damn accurate keeping count of drinks, in terms of standard drinks. And if you could keep count that accurately you probably weren't that drunk, as you alluded to.
I'd probably be slightly less shy when I've had a few, but I'm generally drinking with mates who I know very well so there's no shyness around them anyway. When I hit it hard, anything can happen. Shirtless singing along to a mate playing his guitar, taping off main roads; they've both happened before amongst other things. Generally my drunk state would be pretty much the same as me normally, just slightly more vocal.