It was late afternoon, and as usual Lem was cleaning the floor of the planetarium as it slowly became emptier and emptier as people went home, school trips ended. He whistled some random tune to pass the time and walked to room number eleven to clean it, turning on the light to improve his vision and then realizing that there was still someone there! "I'm sorry! But... We're closing now, so if you don't mind..." He said in a gentle tone even though he just wanted to finish his work as he looked at the person.