I have a weak bladder so if a sink is closer to the toilet it may get pissed in.
Talking of pissing I recall a rather amusing tale, well it amused me anyway : )
I was working fixing a fault about 50m up on a telecoms tower. Site was a supervised site and urinating on site was a sackable offence. I was bursting having been up there at least an hour so I had to do it. I'd take up a few pairs of latex gloves in my bolt bags, usually these were for using when stripping messy denso paste from cable connectors. I pissed into a glove and it soon became stretched like a mini cows udder. My workmate was on the deck in the Radio Base Station room and the site supervisor was in his car out of sight.
I couldn't keep the pissbag in my bolt bags as it would undoubtedly pop and stain my boltbag and stink. I launched it off the tower towards the edge of the site compound. My workmate stepped out of the RBS room and was on the phone oblivious. It landed smack bang on the roof and splattered his balding ginger bonce! He looked up all confused as it was a sunny cloudless day. I quickly turned away so he didn't suss out what I'd done.
"I think there's rain in the air mate". I had to bite my lip before I quipped "I can't feel any rain mate" ; )