You should never go more than 48 hours between sandwiches. That's because sometime in that 48 hours, you'll be faced with a choice between a sandwich or another entree, and you'll choose the non-sandwich alternative. It will inevitably be the wrong choice. And since it's been a big week for sandwiches, Fat City's going to go around the horn to look in at the latest things to happen between two slices of bread. You know it's a wacky week when there's a flood in the town of Sandwich, Massachuse