When celebrities hit restaurants, they're marked diners. Servers and other customers will inevitably report on a famous person's dinner out, which is why plenty of celebs know that leaving a big tip can turn into good P.R. Unfortunately, some celebs just haven't gotten the hint. (Even Grub Street, during our table-waiting days, once got stiffed by a Hollywood hot shot.) So we've put together this list of stories about stingy celebs. Think of this as part fun, part public service. When these boldfaced names walk into your restaurants, you'd be better off letting someone else handle the table.