Here's your mission. Start at the Stratosphere at noon on a Saturday. Go to the craps table and wait for a come out roll. Place a pass line bet and wait until it resolves (point made or seven out). Then take off walking south on Las Vegas Blvd. hitting every casino and making the same craps bet until you finish at the Mandalay Bay. Then cross the street, hit the Tropicana, and head north all the way ending up at the Riviera. You have to follow the same procedure at each craps pit: wait for a come out roll, and see the roll through. If you confirm there are no craps games going anywhere in the casino then you can leave for the next casino. No running. This is your mission. Now here's the question: what's the over/under on how long it takes a reasonably fit person to complete it. I'll throw out the first guess: 17 hours. Hint: there's approximately 30 casinos that front the strip you will have to enter. (You don't have to go off strip to casinos like Hooters or LVH).