Chris: The crypt awaits before, a large stone slab of a door taunting you with its immobility.
Billy: I blow it up with C4.
Chris: You don't have any C4... it hasn't been invented yet...
Billy: Well then I invent C4 and blow it up.
Chris: ok so while Billy's out inventing C4 what do the rest of you do?
John: I invent it before him and blow up the door.
Gwen: I open the door.
Chris: You can't open it, it's locked.
Billy: I'm done inventing my C4. I blow up the door.
John: I steal your C4 and blow the door up with it.
Chris: You don't ha-
Billy: Why would you steal my C4 to do with it the exact same thing i was going to do with it?
John: 'Cause you're stupid and you would mess everything up
Chris: You made the C4 wrong and you blow yourselves up. Except for Gwen. Her clothes are destroyed in the explosion.
Hehehe.