Carter: As it turns out, you and I have the same blood type and minor antigen group.
Carter: (he nods) In fact, the truth is that I wanted to work here so that I could meet you (long pause) and try to convince you to (pause) donate one of your kidneys to me. (Banfield looks very surprised) What do you say? (she is at a loss for words)
Carter: I'm just kidding, friend. (he chuckles) I have no idea what blood type you are! (more chuckles as he gathers his things and starts to leave the lounge) Oh... So serious, Cate!