There's a great scene at the beginning of
American Gods where the protagonist ("Shadow") is talking to a guy in a bar ("Wednesday") who wants to hire him for miscellaneous purposes. The protagonist doesn't really want to take the offer, but he humors Wednesday by flipping a coin for it. (Wednesday has already identified himself pretty unambiguously as Odin, but Shadow is quite unintelligent.)
You see this sequence:
> Shadow took a quarter from his pocket, tails up. He flicked it up in the air, knocking it against his finger as it left his hand to give it a wobble that made it look as if it were turning, caught it, slapped it down on the back of his hand.
> "Call," he said.
> "Why?" asked Wednesday.
> "I don't want to work for anyone with worse luck than me. Call."
> "Heads," said Mr. Wednesday.
> "Sorry," said Shadow, revealing the coin without even bothering to glance at it. "It was tails. I rigged the toss."
> "Rigged games are the easiest ones to beat," said Wednesday, wagging a square finger at Shadow. "Take another look at the quarter."
> Shadow glanced down at it. The head was face-up.
> "I must have fumbled the toss," he said, puzzled.
> "You do yourself a disservice," said Wednesday, and he grinned. "I'm just a lucky, lucky guy."