Sheldon: Aren't you afraid of being blinded? Leonard: How would I be blinded? Sheldon: At the end of the ceremony, all the students throw those pointy hats in the air. It's all pomp and circumstance until someone loses an eye.
Penny: Think we'll have time to visit your mom while we're there? Leonard: Yes. We'll also have time to put my junk in a garlic press, but I'm not doing that either.