"I'm not sure how that's going to keep me from leaving you anymore than everything else already does." The Doctor looked down at his hands, inspecting his wrists as well as he could with the chains still wrapped around them. It would bruise, but it shouldn't be too bad. Good, he didn't like being injured. He didn't like being slowed down. Never knew when he might have to run.

"I'd never leave you behind, Master." That was why he was still here, after all. For him. He would get him to follow him some time, get the watch and him onto the TARDIS. For that and for not being alone he could suffer through all this pain.