Transcription
Pi: Just give the secret knock and wait.
<<tap tap tap - tap tap tap - tap tap tap tap tap>>
Fooker: "Jingle Bells?"
Trudy: Not exactly a beat I'd expect aliens to be familiar with...
Sharon: Easy enough to remember; that's my favorite Christmas carol.
Pi: Here she comes. Remember to stay close. This is the detention block, which is always closely monitored.
<<KACHUNK>>
(Unknown): H-hurry, t-the n-next p-patrol is in f-fifteen minutes.

