In an interview situation it is sometimes hard to know what is appropriate. I’d certainly not hire someone who threw his trash in a plant or left rings on the coffee table. But they might feel a little presumptuous to head back to a kitchen uninvited to return a cup. One doesn’t always know what is expected.
“But they might feel a little presumptuous to head back to a kitchen uninvited to return a cup. One doesn’t always know what is expected.”
I think it is the offer to do so that makes the difference. I always asked “Where can I rinse out and leave my coffee cup?” The response was usually “Thank you, if you will just leave it on the counter, someone will take care of it later”.