Waitress

When you realize you have forgotten to submit an order to the kitchen, go to the table and mournfully say, “Did you just hear that crash?” Nine times out of 10, the customers not only will say “yes,” but actually will believe they just heard a noise of some sort. You can then sigh sadly, and say, “Unfortunately, that was the chef dropping your food,” and then scurry back to the kitchen to hand in the neglected order.