Killswitch Engage guitarist Adam Dutkiewicz decided to take a mid-show beer break and head to the bar during the band’s set at The Fillmore in San Francisco, CA this past Sunday, April 23rd. In the below footage you’ll see Dutkiewicz mysteriously exit the stage mid-song. As Machine Head‘s Robb Flynn revealed (see below,) he apparently wound up at the bar for a beer, where Flynn was located.