Several years ago, our dive group of 5 (including DM), due to varied air consumption, was reduced to the DM and myself. He had to go check the anchor, and signaled me to head up to the boat. I got to the bottom of one of the ladders and there was a woman standing on the other ladder, hip deep in water, with her wetsuit around her knees.(She was evidently peeing.)
I surfaced at the other ladder, said "Hi"...She was mortified that I possibly swam through her pee. I thought nothing of it. Back on the boat, she came over, red faced,and apologized profusely. I said "no problem, dive boat etiquette". Her fiance thought that her embarrassment was the funniest thing in the world. She was not happy with that. For some reason, they bought me a beer when we reached the shore.....Go figure