If you’re unsure of which two alternatives to choose, you can always flip a coin. Usually, your mind will come up with the preferable option while the coin is airborne, but if not, you can let the coin do the thinking for you. But it turns out that coins don’t just land on heads or tails.
An American nickel will land on its side once out of every 6,000 flips. Then you have to take into account the quality of the coin, whether its ridged edges are still intact, airflow, and so on. In fact, if you know every variable there is to know about coin flipping, you can predict the outcome 100% of the time.