Sometimes the only thing worse than being so drunk you can't stand up straight is running out of beer. If you're this guy, the latter trumps all and the former isn't even a passing concern. The original convenience store surveillance video is here, but I prefer this silent film treatment:

What with this being the internet (and Balloon Boy memories still seared into our collective consciousness) some people are already calling hoax on this. I've seen plenty of famous drunks in my life and while I admit none of them were walking quite like this guy, I can't for the life of me figure out why this would've been faked.