John nodded. He agreed. Knowing where that particular TARDIS was right now was probably a bad idea, despite him really wanting to see that Jack soon.
"Feel free to track me down whenever you want too," he grinned broadly, and licked his lips. Finding the right ones of Jack and the Master to check in with sounded like an interesting occupation to pass the time.
He rocked back on his heels, hands in his pockets. "We done here then? Only I've got people to do, and things to see.."