Was recently at a concert and got hit in the head with a half full beer bottle that came out of nowhere, putting a significant lump on my head and soaking my hair with beer. The very helpful dude next to me first explained that I would be fine since I wasn't bleeding, then told me that if I got pulled over on the way home and the officer said anything about the fact that I smelled like beer I should simply explain that "I'm not drunk, I've got a head injury."