Tuesday the 13th. First day back at work after my long weekend and Every. Sodding. Thing. that could possibly go wrong, did. The alarm was set for PM instead of AM so I was an hour late getting up. The trains were late, the buses were late, the numbers were wrong, the server crashed no less than three times.
At least I didn't have to do an abort by looping around the far side of the moon in a frozen spacecraft, but the Apollo XIII patch on one of my jackets certainly came to mind.