It's amazing how quickly you can spend money on food at work, but with a bit of very quick arithmetic you can see why.
Imagine it's first thing Monday morning and you're sat at your desk thinking about the whole week ahead. Seems like a good time to have a bacon butty. You know, start work on a high note and a full belly. It'll make you feel better...
Later Monday, you're feeling a bit peckish. You didn't bother with lunch, so you nip out for a packet of biscuits to keep you going. The following day, you go out and get yourself a sandwich from the local butty shop, and so it goes on through the week.
It's very obvious to see where this is going isn't it? At a conservative estimate, you could easily spend £15 or more on feeding yourself at work each week, and spending that amount on feeding yourself doesn't seem entirely unreasonable, does it? Well...