That's terrible. First you have to be super aware of the street, and secondly, do not tell your landlord you did that. Otherwise, next time when your landlord is there washing, it's a not a great mental picture for her to imagine what you did there,
Well the first one time I saw one of those was in BA in my first hotel room. I got in my room and went in the bathroom and I was wondering what is that thing for? So I bent over looking down into it very curious wondering what it is this for? I turned turned the faucet knob and BLAM a stream of water right in the face. Well after that I sorta knew what it was for.