The shapeshifting alien
It was a warm, sunny day outside. Birds were singing, and tree branches were singing. Suddenly, one short student in a suit would see a giant, whole rocket along with a few burning wheels in an elevator.
"Certainly weird.." he said, looking around and then seeing a cat carrying a piece of meat. It looked like an ordinary cat. Then, the cat would try to scratch the student. The student would strike back and scare it away, but then the cat procceeded to transform into an alien. The student would run away and hop into the rocket.