That's One Ticked Off Cat
I swear, I didn't do anything to him!! Mittens likes to bang on the apartment door that leads into the shared hallway every once in awhile, meaning he wants to go out to explore (not outside, just in the house!). I don't mind, and usually will let him out, knowing he'll head for the basement to wander. However, the last several times he's gone out there, I find him later on the landing going up to the upstairs neighbor's apartment. He just likes to sit there. Last Friday, he didn't seem to appreciate that I caught him up there and took a picture!!