In piano, if you try to force hitting this key and that key, it's very broken. It's not pretty. When you're in archery, you can't try to force it step-by-step-by-step. Then the shot doesn't flow and it's not a good shot. If you just let the performance flow, it's really beautiful.
The only mistake guys can make is to try too hard with their appearance. There's something very unmanly about it.
If you want good sketches, go pick up Sid Caesar. The best of Your Show of Shows. That's the greatest sketch comedy you'll ever see on television.