Rigged Roulette

You walk into an underground casino. The room is dark, with wood panelling on the walls and a dimly lit chandelier overhead. There are a few paintings on the walls, and a locked door in the back with a keypad. In the center of the room, there's a roulette table. You approach to take a closer look.

You absentmindedly spin the wheel, and the ball rattles around and falls into one of the slots. You keep spinning the wheel, and you notice that it keeps falling into the same four slots.

Maybe this is the combination? You try punching it in but there are too many digits.

You pull over a friend, and the two of you place your hands to cover the corresponding numbers on the table. A click! A small drawer pops out of the side of the table with a number written inside.

You run over to the door and punch in the code. It works!