Oh, I have a couple of good ones.
Several years back I was on a marathon bird count trip. Up and out at 5 am, home at 10 pm. We had to see as many bird species as possible, over hundreds of miles.
Well I was with a car load of men, the only woman (serious birding, very male dominated hobby). We were going everywhere through the barren, treeless, bushless Nevada desert. It got time for me to need the loo (toilet), not a tree or bush in sight. The guys said they would turn their backs, but I just couldn't do it.
Finally, now in allot of pain, on our way into a reserve, we passed a hut with toilets. I jumped out of the van, rushed to the huts, got in, got my trousers down and perch across the hole in the ground when in walks one of the men
.
In my hurry (agonised hurry) I had not see the little man figure on the door, or locked the door.
Both self and man were embarrassed
, but with a whole half day together we decided to just 'get over it'.
I'll wait to post my second most embarrassing moment, which happened again on a birding trip.