I saw a homeless man standing very close to a Civic Center BART station exit escalator. He was looking down while standing straight and still. As tired as I was Monday morning, it took me a little longer than usual to realize what he was doing. He was peeing into the outside corner of escalator exit. I figured that out after I got to the top of the escalator and saw a moving body of yellowish fluid flowing from the top down. Apparently, the pee waterfall was caused by the overflow from his corner.
I'm used to jumping over pee puddles around the Civic Center station, but never moving fluid on an escalator in motion. There's a first for everything I guess. Nothing surprises me at the CC Bart Station!