@rendezvous come on man, it's not that uncommon, people piss in beer bottles all the time
I was a really sleepy little boy who was on a bus and so badly wanted to pee without having to ask the driver to stop because that would've been embarrassing 😂 so I just drank whatever was left of the Sprite in a bottle and pissed in it but at least when I reached home I poured the piss down the shitter.
And let's just say this has happened more than once