Okay, Dr. Smith is now making herself "useful" by giving French lessons to some of the colonist children, and I was going to make a joke about her not really knowing French and just faking it like Chang teaching "Spanish" on Community, but the show just basically implied that that's actually the case. Smith has probably been bullshitting her way through "French lessons" for about a year, and Judy has probably been letting her get away with it because it keeps her out of trouble.

Actually, Dr. Smith is a lot like Chang. She's an unpredictable back-stabber that none of them really like or trust, but she's been a part of the group for so long that everyone just sort of accepts her. She's Aunty Con-Artist.