Getting sick while on vacation. With the flu. After I'd been vaccinated three weeks before.
But to add insult to injury, the flu was very likely gotten from a hair cutter (I will not dignify her by giving her a professional title) who coughed all over her station, and her customers, and gave me the worst haircut I've had since my mother hacked off my hair with a dull pair of scissors just before my First Communion. Bad enough I want to go around wearing something over my head to cover the horrific hack job on my hair, but then to pick up the woman's bug, and have it manifest on our last day of vacation....
People really need to learn to stay home when they're sick. Really.