This is why people shouldn't be able to carry guns in public. I can see this happening, but I wouldn't shoot you. I would start this biggest condiment war ever. You throw mayo at me, try getting mustard out of your shirt! It's not easy buddy! Have you ever been stained by ketchup? I would have just threw the dispenser.
Jail time for this chick. She should have fought back with an appropriate weapon, not a gun.