Sitting at table at restaurant. Food has been ordered... should be arriving anytime now. Young punk food runner (not our server) drops off two dishes to the table directly in front of me and leaves. I see everything. A couple of minutes later, they flag him down, he takes the dishes away. "This isn't what we ordered". He then walks around the entire dining area, confused, mouth open, total fucking retard, eventually comes to our table and, sure enough, there is our order. "I gave the other table your order by mistake... don't worry, they didn't touch nothing I think," he says with a "I hate my job and my life" attitude most loser teenagers have. So what now? If you send it back because you're concerned, you just guaranteed yourself a 100.00% chance you will be swallowing semen or feces (or both) when your order returns from the kitchen. If you keep it, then you're eating a dish that most likely the other couple touched with their fingers, maybe even took a small bite, etc. One option is to stiff the server, but it wasn't really her fault.