Amy: I'm all for promoting women in science, but I don't really want to be on Wil's show.
Sheldon: Is it because kids may be there, and they're known carriers of head lice? I get that.
Amy: Sure, that's the reason.
Sheldon: Wait a minute. You're always bragging that lice aren't attracted to you because your scalp is so oily. That was on your dating profile.