It's kind of like the TARDIS. No one really gets it so you just make shit up.

My favourite part of Jack being Boe is thinking about how much eh must've been lolling when Cassandra kissed the Doctor. I choose to believe this was in his line of sight.

AUs in this show make more sense than AUs for other shows, but still, I generally feel the need to comply wiht canon.

YES. The teletubbies have to be the greatest thign in that epiosde because omfg.