We're about as happy to see Thatcher, Meredith's alcoholic dad, as she is, especially when we learn that years of drinking have given him liver failure and he needs a donation, stat!
Lexie isn't a match and is crushed when Meredith doesn't immediately volunteer her liver. Meredith tells Izzie she doesn't plan to see if she's a match, "I barely know the guy." Cristina urges her on, mostly so she can get in on a surgery: "Mama needs to cut!" she says.
We'd feel Cristina's pain at not being on any surgeries, but she's so shameless at trying to manipulate everyone around her that we have to laugh. Her offer to a doctor who heard she's "hardcore into cardio," ("I can be hardcore into anything you want."), sounds like a come-on of a whole different kind!