The Doctor and Sarah Jane literally bump into Rose in the hallway. "Did you hear that?" and then immediately: "Who's she?" The Doctor introduces Rose and Sarah Jane, oblivious; Rose is slightly unhappy to meet her. No less Sarah Jane, with a brittle smile: "You can tell you're getting older: your assistants are getting younger." Rose is outraged because of feminism: "I'm not his assistant!" The Doctor scratches his ear. "No? I get you, tiger." (They call'd me fool, they call'd me child: I found an angel of the night; The voice was low, the look was bright; He look'd upon my crown and smiled: He reach'd the glory of a hand, That seem'd to touch it into leaf: The voice was not the voice of grief, The words were hard to understand.) The Doctor runs off again, and Sarah Jane and Rose follow. Always.
Mickey stands in a classroom surrounded by dead lab rats: "Sorry! Sorry, it was only me. You told me to investigate, so I started looking through some of these cupboards, and...all of these fell out of them." Everybody's grossed out by the rats. "And you decided to scream," says the Doctor archly. Mickey's like, "Rats can be surprising!" "Like a little girl?" the Doctor asks, and Mickey is indignant: "It was dark! I was covered in rats!" I like cruelty to Mickey, at least up to this episode, but it's a compelling argument. "Nine, maybe ten years old," the Doctor adds. "I'm seeing pigtails, frilly skirt." (Ten's "the kind of man" who will drive a fucking joke into the ground, I can tell you that for free.) "Hello, can we focus?" snits Rose. "Does anyone notice anything strange about this? Rats in school?" Sarah Jane wonders why that's weird -- Biology lessons, dissection -- and asks if Rose has gotten to Biology in school. (If this were a real bitch fight, no way would she keep bringing up Rose's youth; that's one thing I'll say to keep the shippers calm. Next week I don't know what I'm going to do at all.) The Doctor and Mickey get very nervous. "Excuse me, no one dissects rats in school anymore," spits Rose. "They haven't done that for years. Where are you from, the Dark Ages?" ["Is that true? I did a fetal pig in Grade 11, and that was only 1990. Am I super-old?" -- Wing Chun] The Doctor's like, "Moving on...," but Sarah Jane is still with a full head of steam and really wants to say something cutting. She and Rose look at each other horribly. "Everything started when Mr. Finch arrived. We should go and check his office." The Doctor tosses a rat to Mickey, who drops it, and everybody follows the Doctor into the hall.