I was about 10 years old, and I had wussed on running the last lap of the warm up mile for soccer practice. At practice's end, coach told my dad what I did. My father put on his sneakers and forced me to run the last lap with him. I was whining and complaining the whole way. I dreaded it. It was awful.
It was also the best lesson I ever learned -- never give up.
Thank you dad.