I believe I can fly. This led me to try flying into something more shock absorbent than concrete, a swimming pool.
The lesson here is this, always plan your risk-taking endeavors clearly. Make sure those risks have a higher probability of success than failure. Even at that have a backup plan such that loss incurred or damage, if there would be any, would be minimal and easily contained.
It is impossible to live a life without risks, but while taking risks, one has to take precautionary measures no matter how little the risk. In other words, if you are in a situation where you must take a risk, take a calculated risk.