too many to mention really...
one of my first horse shows I was riding my horse past the judges when he suddenly stopped and refused to budge. So I am sitting there urging him to move on and hear all this laughter. Stupid horse had decided to stop directly in front of the judges stand and relieve himself - a big stinkin' pile.
one day I was cleaning house and wearing some surgical scrubs a friend had given me ( they are so comfy for cleaning or lounging or sleeping ) and I was standing on the couch in front of the living room windows dusting off the very top of the curtains. I stretched up and forgot that the scrub bottoms were kinda loose fitting. You guessed it! I mooned the guy across the street.
I once managed to startle an entire church. Years ago when I was in my twenties I attended a small church and was a member of the choir. The pastor's son was a couple years younger then me and had a crush on me and boy's being boy's he liked to kid me in whatever way he could devise. It was such a small church the choir sat on folding chairs and I was in the second row with Bill in the row behind me. One day as we were sitting listening to the pastor's sermon Bill hooked his feet under my chair and slowly started to lift me upwards. I didn't realize why I was suddenly rising up and of course no one in the church could see Bill's legs lifting me either. You should have seen the alarmed look on the congregations faces! They must have thought I was slowly being raptured or something.