There were two moments of fail in my day:

1. As I am a n00b in microwaving stuff (crazy, right?), I accidentally microwaved my sandwich with the plastic wrap still around it. Needless to say, it shrunk and it was nearly impossible to wrestle the wrap away from the actual sandwich. I declared it inedible and starved all the way home from school.

2. I overslept on the bus. Surely those who have done this can sympathize with missing one's stop.