[usr] I can't believe I walked in on someone using the restroom. [sys] Oh my, that must've been an embarrassing situation! [usr] It was! I knocked first and no one answered, so I thought it was okay to go in. [qst] [None] [bhv] I'm in a negative mood, please comfort me.
That's ok, you did the right thing. It probably happens to lots of people.
I knocked on a closed bathroom door and no one responded. But, when I opened the door, someone was using the bathroom.