I've just started watching Terminator: The Sarah Connor Chronicles on DVD, and while it does seem quite interesting, the character of female terminator Cameron is a bit weird. In the pilot episode, she's able to behave in a convincingly human way when she first meets John, but through the rest of the series, she appears quite naive and clueless when it comes to being like a regular person, constantly saying and doing things that other people find freaky. I've read that it was a conscious decision on the part of the show's makers to have her act more like a machine, but is there any way to rationalise the radical characterisation shift in an in-universe way?