[If it is, Rudy doesn't recognize him. Good job, Luke, your disguise was foolproof! ... Well, it's more like Rudy just doesn't remember the prank. He's already let it go, man.

Now for the puzzle! Give him a second to think this one out.]

That's a good one. [THINKS.] Um, let's see, three days from Friday would make a Monday, wouldn't it? And waiting until next Friday would be seven, so... that doesn't work.