Screw Your Diet
If you follow a very particular diet, try not to be a jerk. You never know what the kitchen staff will do to your vegetarian sandwich. Thankfully, this person didn’t drop the sandwich on the floor before serving it to a rude vegetarian, but they did something that’s pretty much unforgivable.
They rubbed meat all over the sandwich before handing it to the Karen. The best part is that even if the Karen could taste the meat juices, they had no proof that the kitchen staff had maliciously done anything wrong. It’s only upon reflection that she’ll realize how bad of a person they were and they got what they deserved, but that’s never going to happen.