Best Before

Hmmm. Just found a few cans of beer in the cupboard under the stairs. There's a best before date on the bottom of the cans - 30/09/08 (or 09/30/08 for you crazy Americans). It's the only beer left in the house, and I really can't be bothered to go out, so I'm going to risk it. What's the worst that could happen? Anyways, it's only a 'best before' date, not a 'use by' date. So it should be fine. Well, we're about to find out.