He watches with some interest, but he can't make heads or tails of it. It isn't until the handcuff pops open that he has any idea progress is being made at all, and then he jerks upright, turning his wrist and staring at it.

"You did it! That's amazing! Finally." Oh, Johnny, you're lucky you're such a good friend but you are not getting this torture device back he is going to smash this thing into a million pieces--

Allen looks up at September again, beaming. "Thank you so much! That's really-- I wasn't sure it was even possible."