I poured a tablespoon of red food coloring in my mouth and held it there while in my psychology class. When it came to the Q&A portion, I raised my hand to answer and as I talked, I let the crimson "blood" flow out of my mouth and down my face and neck as my eyes rolled backward and I collapsed on my desk, a pool of lifeblood spreading from my mouth to cover most of my desk. The professor told me that that was the incorrect answer and moved on with her lecture.
She later told me she took a Xanax that day since she knew she'd have to deal with me today.