Here is what you do...
Go outside when it is raining. When it has rain for over an hour. Take yourself outside. Without an Umberlla. And go to where their is no grass just mud.
Have your knees on the ground. And put mud around your Arms. And Make sure it is think enough that you cannot take a Bath.
Then stand up and Punch!
Go in side and take a shower. And think about what happen.
And that is all it is to it.