When I worked construction I would keep a ratty board in my van to use as a dolly or creeper, so occasionally if there was something fun to skate in/around a half built house and no one was around I’d get it out.
Now I work overnight shifts half of the year in an office building. A few times I’ve forwarded the phone to my cell and went to skate some tiny stairs and ledges nearby, or just cruised to a 7/11. There’s also an unfinished vacant floor on this building that I’ve skated once or twice. Smooth concrete with poured manny pads. My boss knows I’ve gone up there and thinks it’s funny, but I’m hesitant to do it more and piss off the owners of the building.