And if that doesn't hurt -
Jack: "You probably don't think I can force this towel down your throat. But believe me, I can. All the way. Except I'd hold onto this bit at the end. When your stomach starts to digest it... I pull it out. Taking your stomach lining with it. Most people it takes them a week to die. Its very painful."
Or.......
[after breaking suspect's fingers to get information]
Jack: This will help with the pain..
[knocks suspect unconscious]
One of my favourite moments was last year when Chloe told him if he needed someone to talk to, she'd be there for him. The look he gave her was GREAT!