This one I haven't checked off my bucket list yet.
I'm typically a quiet type of guy although I've had my fair share of kinky sex in public places. So far I've successfully done it inside an empty classroom, department store dressing room, a movie theater, inside a cave, on a golf course green, and most recently inside the women's shower area of a well-known fitness center.
Its just too difficult to do it in the office especially since they've replaced all the wooden walls and doors with glass panels and CCTV is installed on every corner. Not even the fire exits are safe.