Humor has always been a Harkness trait and there's a cheeky smile on his face. "If you want me to carry around a tombstone and casket I'll be happy too." Oh, of course the other doesn't fall far from his ears and there's a smile. "If you want me to kiss that firm ass of yours? Sure by all means let me at it."

There's a furrow of his brow and he puts a finger to his lips. "Kissing my own ass.. I've been offered others before."

The gun, Jack knew exactly what the other Jack wanted, he tried it countless times to see if it would stick during the years. It never did. The Doctor will balls this up and Jack's going to make sure it won't happen here. He walks down the stairs and he walks over towards the other. "I'm positive that you'll come back."