LOOK: A kegful of photobombs from the Great American Beer Festival

You might think that beer is the greatest constant of the Great American Beer Fest. Not so. This video editor could not help but notice one visual over and over again: photobombs. By the kegful.

Unplanned cameos ranged from the simple beady-eyed stare to the full-on-expletive-erupting interruption. Apparently anything goes in the land of free-flowing beer and lowered inhibitions: