Homer: Well, there’s not a bear in sight. The Bear Patrol is sure doing its job.

Lisa: That’s specious reasoning, Dad.

Homer: Thank you, sweetie.

Lisa: Dad, what if I were to tell you that this rock keeps away tigers.

Homer: Uh-huh, and how does it work?

Lisa: It doesn’t work. It’s just a stupid rock.

Homer: I see.

Lisa: But you don’t see any tigers around, do you?

Homer: Lisa, I’d like to buy your rock.