A few bucks flipped on the table? Adding a percentage to the sales receipt? Borrr-ing. When it comes to creativity in the gratuity department, Kitchen 56, the new Arcadia restaurant serving up everyday American comfort food and a few Italian favorites, asks that tips come in the form of beers and a bell. Whether it's delicious pan borracho (drunk bread), a tasty salami and sopresatta sandwich, or a lip-smacking bowl of slow-roasted pork with pasta, if you like what you're eating (and there's a good chance you will) send the kitchen a six-pack of PBR for 10 bucks. When you do, a bell will ring, letting you know your gesture was appreciated and that, for all its casual class, Kitchen 56 hasn't lost its sense of humor.