Lucid Dreams
This is what happened: I was walking around with my phone out and I saw an app called: 'Dream'. I clicked on it and was in a different place, but lucid. I was lying on a table and the Simpsons were painting me. I decided to do a reality check - as I knew I was dreaming. And when it succeeded I jumped off the table and ran outside. I pointed at the ground and yelled "Buildings!" In the hope of making some buildings appear. But to no avail. So I ran up to a DC and yelled "I'm dreaming". Then I woke up.