Sheffield students stupid?

Long time no post...

Anyways, I happened to be in our student shop the other day and noticed that several of the beer stacks had pieces of paper by them, clearly indicating there's an offer on. Hmm, let's investigate:

Fosters' 99p/can, 4 for 3.96

Hmm, that's not cheap... wait, that's not even an offer? Why the hell are they telling us the price of a four pack if it's exactly the same as the price of four single cans? It's the same on all of them.

I'm guessing they assume we can't multiply by four or something. Jesus.