Penny: All right, Sheldon, this craziness has gone on long enough. Please come home so I can cut your hair.
Sheldon: Penny, you're not trained, you're not licensed, and most importantly, you don't have access to my haircut records.
Penny: All right, honey, look. We've known each other for a long time now, right? I've taken you to Disneyland, I kicked a bully in the nuts for you, I sing you "Soft Kitty" when you're sick, you've even seen me naked once.
Leonard: I'm sorry, what?
Penny: It's a long story. Anyway, Sheldon, I promise I know what I'm doing. Please let me cut your hair.
Sheldon: Amy, what do you think?
Amy: There's not a hair on my body I wouldn't let this woman trim.

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