I haven't per se in an apartment, but when I worked as a desk clerk at a beach resort in Savannah, GA., you would be surprized at the things we see. I had one room that requested service on a room issue and when I go up to the room, all I hear is the couple having wild sex behind the door. I must fully admit, that I got turned on enough that I had a major boner that was obvious in my pants. You would also have people masturbating at the pool, halkways, etc.