Sensei Cycyk, in a demonstration of Ki extension, would stand in hanmi and hold a can of Coca-cola in his hand. He would have you hold his wrist with one or two hands then tell you not to let him drink the Coke. Without moving his feet he was always able to take a drink.
Interesting...wonder if the demo would have worked with Pepsi...
So, I'm curious as to how this helped you learn, and what you learned from it. Did it help your technique? Did you learn something about Ki? Or was it primarily just a neat demo to show what could
be, given enough practice?