Aethyta: All I'm saying if you feel the urge to head-butt something, its genetic.
Liara: I have never wanted to head-butt anything.
Aethyta: Really? Not even a little bit? Come on.
Liara: I do not head-butt people.
Wrex: Hey, Liara. You know that one breeding request Shepard had on Tuchanka? That was from me. OWW!!