That is so terrible! Parents who force their kids do things are the worst.
I feel so lucky to grow up in a supportive envinroment. My parents never restricted my freedom and never forced me to do anything (except homework :P).
I hope he never did something similar again
I guess this father is extremely passionate about skateboarding and he wants his son to be a good skater. Instead of building the love of skateboarding, it may even cause his son to hate skateboarding with such terrible experience actually. Great that your parents were able to give you the freedom of choice when you were young.