i'm not sure if this qualifies, but back in high school, i was having dinner at a chinese restaurant with my girlfriend and her brother. we were having a grand ol' time cracking up over various silly things. i was laughing so hard for so long, and had drank so much tea, that all of a sudden everything came right up and onto my lap, on my white shorts. the other customers were none too impressed as we walked out, with me covered in vomit, and laughing that much harder.