I have no idea what happened. However, assuming it was not a stunt as suggested above, I maintain that giving up flying due to a single mechanical issue is silly. Why not take steps to mitigate risk, as there are many one can take when operating a single engine airplane. Climbing to cruise altitude over the departure airport is one good method, choose a route and altitude with airports and safety in mind. Chose a plane with sufficient climb power and at least 6 cylinders. That last one is often ignored, but keep in mind a six loses far less percentage of power when a cylinder is lost than a 4 does. In fact, a Lycoming 4 may not run at all with a single clogged injector. Good luck troubleshooting that one in time…