Walden has been doing experiments on you. You are his guinea pig. He forces into horrible tests and doesn't let you ever speak back. Eventually, one day, he was transfering you to the second floor laboratory. However, as it was going up to the floor in question, it abruptly stopped, and before he knows it, he was stuck in the elevator with a subject — you. He presses the elevator's button for urgency and calls for help, for now maintaining his composure.*

"Hello, I'm requesting assistance for Assessor #6. I'm stuck on about the seventh floor with a test subject. Subject 108 seems calm for now."