"Yes well..."

Three, as he was often known as here in Nautilus, shrugged as he watched the little lights on the console controls flash on and then alter at his commend. Totally just switched the hot and cold water to give Ten a shocking shower later.

"It isn't exactly a subject I care to talk about. I only brought it up as you were worried about this other me."

He watched Bill, before deciding that would never satisfy her curiosity at all. It certainly wouldn't his. Now that his Regeneration was over, he had 'lived' through it so to speak, maybe he could say a little more.

"It is a complete change of self. Oh, the core bits stay largely the same but the rest; hair, eyes, height... you can end up older or younger..."

Male or female, though he didn't know about that 'him' yet either.

"Bits of your personalty even. It's very unnerving. I'm not surprised my older self never told you about it. That and... I do seem to have more difficulty dealing with people as I get older. Senility perhaps. That is our prevailing theory."

The humorous one. The Time War being the far more likely root of his issues.