I remember how I was playing outside in the rain with a friend that evening, when our parents frantically called us inside almost angry at us. According to weather forecasts, the wind had carried varied amounts of radioactive material from the detonated reactorblock straight over germany and many other european countries. Seeing the grownups being so scared and the cartoon trajectory of the radioactive fallout spreading over neighbouring countries of ukraine and beyond shown in the news on television, really left a deep impression. I recall spending over an hour under the shower (d'oh how I despise unintentional rhyming).
It was a scary time back then, and it really changed my outlook on the bliss of nuclear energy.