Greg (Ben Stiller) throws a brick at Jack's (Robert Deniro) brand new RV to test out the bullet proof windows. Jack tells Greg to go ahead and throw the brick right at the window. Greg does this and the brick bounces right off the RV window and smashes the windshield on Greg's rental car that was parked nearby. Jack says "Insurance will cover that." and they all get in the RV to go on the trip. As the RV is pulling out of the driveway, you can clearly see Greg's car on the driveway in the background without a cracked windshield.