Here's a good one. A Tory backbencher - not yet named by the Daily Telegraph - claimed £230.17 for food in February 2007. That's the precise amount that was left available to him for that year.
Another MP claimed for an electric shaver, but it was refused because personal items are not allowed. Surely food counts as a personal item? After all, it wasn't vital to the MP's work, and it's not like he couldn't afford to pay it out of his own wallet. Perhaps he goes round bribing people with biscuits to vote for him.