Once in a Lifetime Opportunity

What is the epitome of a once in a lifetime opportunity? Is there something that you picture in your mind, some illustration of the perfect example of a once in a lifetime opportunity? I can think of many, but none more befitting than the example of flying to the moon. I would say flying to the moon is an exemplary archetype of a once in a lifetime opportunity.

So when I dreamed the other night that I had been given that chance, that once in a lifetime chance to fly to the moon, can you imagine my disappointment when I completely screwed up the mission?

The trip to the moon cost the USA a mere billion dollars in my dream (probably somewhat accurate in real life I imagine) and took 3 years to plan. In one single moment of stupidity, I ruined the entire mission. Failure of epic proportion! Any guesses how?

I dropped my shoe. Yes, while soaring through the earth's stratosphere, my shoe fell off and fell back to earth. Apparently, all passengers flying to the moon must be wearing two shoes.

So we turned the damn rocket around and went home.

Now while this dream is probably one of the dumbest I've ever had, I can't help fear that it is meant to represent some horrible mistake I've made in my real life.

By the way, the shoe I dropped was a black Chuck Taylor.