We were cleaning a fairly tall building 12 stories iirc adjacent to an equally tall government office building. This office building had several bedrooms on the top level, which we could see from the roof but certainly not from the ground. From where we were standing this bedroom was about ten meters away. As we're setting up a naked dude jumps onto his bed with an ipad and starts masturbating furiously. Facing us. Not weird necessarily but certainly unpleasant