It’s a sneak preview of the third series of Channel 4’s best programme about teenagers, is what it is. Yeah, you heard. Because it’s funny, that’s why. With insults like “Adolf Shitler” and “Rio Turdinand” flying around all over the place like it’s the most normal thing in the world. School eh? Good times. Apart from the acne, the insecurity and the deep sense of shame that comes from being a lanky dude with shoes that never look good.