The boy grasped the Doctor's hand. "Thanks for having me. I'm John-"
The Doctor was already back at the controls. "Yeah. Look, we've a lot of places to go. Where first?"
"Well, I guess I'd like to see the training the gladiators had in Rome. Some of it looked-"
The Doctor made a face. "Really? Well, I suppose it wouldn't hurt." He started working the controls, and the column in the center of the console started up. "Here we go!"
"I can't stand this! How the hell do you think you could judge them? What did you think you were doing?"
The Doctor turned away from the controls. "I did what was needed."
"What - who the hell do you think you are?"
"I'm the last Time Lord, it's my responsibility! I don't expect a stupid ape to understand!"
"Well I guess I don't, you horrible bastard! How about you just take me home?"
The Doctor worked the controls a few seconds, and a WHUMP shuddered the TARDIS. He turned back around. "There you go."
John opened the doors. "Wha- this isn't - this looks like... well, early twentieth." He turned back around. "Can't you even get me to the right time?"
"The door is there, mister Sullivan," said the Doctor icily. "Now get the hell off my ship!"
"You think you can just leave me stranded? You think you can just kill me off?" The boy took one, two, three strides and gave the Doctor a one-two combo that knocked him into the console, then to the ground.
"Ow. Maybe you could make your fortune with your fists, you monkey."
"Maybe I will, you sanctimonious shit!" Without another word, John turned and walked out the door, slamming it behind him.
The Doctor rubbed his jaw. "He really does have a hell of a punch."
He levered himself up to the console, and looked over toward the doors, a guilty expression on his face.
"Sorry I had to do that, but the time line has to be kept intact. Godspeed, John L. Sullivan."
A strange blue box disappeared from a field, and no-one noticed.