I had a dream that I was visiting someone at hospital but when I walked into the room of the person I was visiting, they weren't there.
I walked up the hall looking for them, and someone else I knew was in another room.
But I just talked to that person elsewhere. Man, no way they had gotten sick and gone to hospital that quick.
I soon determined that I had accidentally walked into an alternate reality. So I used my phone to google "monash university" and "physics department."
Unfortunately, this is where I woke up, but I think that's a pretty wise move to consider if you should ever get into that situation.