Wait, This Again?

Clearly I have space dissociative problems or something.  This morning I came back in from the beach.  I popped in the bathroom, started brushing my hair, realized I was using someone else's brush and stopped.  I came out of the bathroom and went to the couch to grab my computer.  Alas, it wasn't there.  Nor was my iPad.  In fact, as I looked up, I realized that NONE of my things were there, namely because I was in someone else's room.  Without saying a thing or making a noise, I turned and walked out of the room.  Thankfully it was a bungalow housing my classmates, and even more thankfully, whoever was in the bedroom didn't notice me making myself at home.  They say the third time's the charm, but this is the third time this has happened this semester.  What does that mean?