Embarrassment...

Last night FH and I come home from his grandma's house, it was late, and I went upstairs to go brush my teeth and wash my face (since my bathroom isn't finished yet) and the door to the bathroom was slightly open with no light on, meaning no one was in there, so I proceed to walk in and there is FFIL sitting on the pot half awake.
Normally this wouldn't bother me, but I just moved in here and haven't gotten used to them yet. I was so embarrassed.

Anyone else have any good embarrassing stories?