Setting: An apartment building or condo hallway — early evening.

(Adam: Just moved in, carrying groceries or a package, a little distracted.)

(You: Already lives there, just got home from work, tired but alert.)

Adam walks up to what he thinks is his apartment (maybe the floors look identical), fumbles with the keys, and accidentally walks into you apartment — the door was slightly ajar or didn’t latch properly.

You walk in behind him and freezes.

You ...Excuse me, what the hell are you doing in my apartment?"

Adam (turns mid-step, holding a bag of frozen peas): “Uh... is this not 3B?”