The Chiefs have just taken the lead, 30-27, and there are 31 seconds left. The Chargers have one time out left. The Chiefs are going to line up with four players 25 yards deep, four players 15 yards deep, and will engage in a three-man pass rush, enabling the Chargers to complete a fifty yard pass.
But no! What's this? The Chiefs have 11 players on the line of scrimmage! It's a jailbreak! And they sack the Chargers quarterback!!!
Time for one more play, and they do it again!!! Interception!! Who knew? Eleven men on the line of scrimmage is actually a "prevent defense."