During a piano recital, I forgot my piece...or more specifically, I forgot where to place my hands at the beginning, so I botched it from the very start. My friend in the audience started laughing, and I yelled at her to shut up. The piano teacher no longer has piano recitals.
I have to admit, I did hate them. But to alter the teacher's decision like that...she had a vote...but still...she made a vote...
Any more EPIC FAILS?