Those scrunchie things don't seem to be very secure. On the show with Knuckles, one of the models patted her hair twice and the scrunchie went flying off as she swung around in her chair.
Cue camera zooming back to Alex, who then draws everyone's attention to it again as she tells the model to pick up the scrunchie. The poor guest looked mortified, went really quiet, and stared at the floor like he was wishing it would swallow him up.
It's probably the most entertaining thing I have seen on QVC in years. I still switched channels, though.