There are a handful of things that, if they go down, you want to keep inconspicuous, like punching that stroke Jason from marketing in the mouth for stealing your out-of-market ad campaign idea. That's something you're going to want to do on an empty subway car or in a back alley. Other potentially devastating acts include overt flirting, touching, and chaotic make-out sessions in front of coworkers. These are things you should do in back alleys or empty subway cars (but preferably in your own apartment).