Quote from Hal in Burning Man
Hal: Okay, let's get moving here. Reese, Malcolm. I want you guys- Dewey: They're gone. They shimmied under the RV and took off running. Hal: Oh. Well, then I guess it's up to you to help me set up a protective perimeter around the camper. We'll need about 40 rocks, at least the size of bowling balls. I'm sorry, son. You snooze, you lose. Now, come on, come on. Don't let the flies get in.