Regenerations. Having seen most Doctors go through it at this point, I believe the writers and actors had the idea in their heads of, "Think of your most epically wasted night out....and do that." If you've had...a few...experiences of this sort of thing, you'll know everyone behaves quite differently when they are completely rat-arsed. The Doctor's post-regenerative symptoms:
3 and 10: Unconscious.
4 and 12: Completely manic and off their nuts. That guy you have to stop from jumping into the canal. Repeatedly.
5: Castrovalva was a whole serial of 'getting your extremely pished mate home from the pub, who's alternating between not being able to stand, puking on the pavement, and running in front of traffic.' Yes, Nyssa and Tegan, we've all been there.
6: Turns into a complete arsehole. Who is this guy? He should never drink again.
7: Almost lucid, but can't remember what he did or that his pal doesn't look like some lassie he fell out with years ago.
8: Has no fucking idea where he is, who he is, how he got there. Just woke up on a park bench or in a hospital somewhere with no explanation.
9: Who knows.
War: Soberest regeneration ever. Fucking elixir.
11: Has a terrible case of the munchies. Wants to stop in every kebab shop you see.
13. You almost think she's sober because she can hold a conversation and stay conscious and isn't trying to jump into the canal, and she can fix her broken screwdriver, but she's forgotten her name.
14 and 15: Those guys who can drink like fish and show no effects at all. Fuck them.
