I remember the evacuee children from towns and cities throwing stones at the farm animals. When we explained that if you did that you wouldn't have any milk meat or eggs they soon learned to respect the animals.
I like to feel the butterflies in the stomach I like to go home and have a restless night and wonder how I'm going to be able to accomplish this feat get jittery. That hunger and those butterflies in the stomach are very essential for all creative people.