I went to Pizza Express a while ago and was on a diet at the time. Saw a brand new "healthy" pizza option with less than 500 calories and thought I'd give it a go.
Turns out all it was is a pizza with no middle, like a flat doughnut, that they then stick a plie of salad in the hole.
Same price, and only with less calories because its actually half a bloody pizza and some lettuce.
Haven't been back since. Bastards. :)