ID policy in general. Got less than 5 hours to write a 16 page essay for uni tonight (not through bad planning, but because that's the brief for the project), so swung in past Sainsburys for a can of Red Bull to get me through the night. Got to the checkout and was asked for my driving license? WTF? Why do you even need to regulate the sale of Red Bull?! Beer I can understand, and having drugs on prescription, but Red Bull?