No, it's not the latest scare story about booze, it's that I've had another beer from 300 Beers to Try Before You Die.
Rogue Shakespeare's Stout was the culprit. A strong, smooth stout with typically American citrus flavour from the hops. I don't really think the combination worked, not that I didn't finish the bottle mind. I just think the flavours seemed to clash making a beer somehow less than the sum of its parts.