That would be one of those home oxygen breathing machines, by the way.
TRANSCRIPTION COURTESY OF JOSEPH HOUK - [CW is walking away from her parents' house in Tyler, just about to get in to her car, when] (KS) "Psst! Cassie! I decided to come as backup. You want me to slip her the medicine?" (CW, with a dejected look on her face) "No, thanks." (KS, who is "disguised" as a portable home-care oxygen tank) "Oh… Okay… Well, this was a waste of disguise design time."