NTR was known for his determination while acting. That was during the shooting of the film 'Vaddente Dabbu' in early 50s. Peketi Sivaram has to hit NTR on his shoulders with a wooden chair. He did that slowly. But NTR said that he is not getting the feel to show pain in face and hence hit harder. Peketi did that as NTR insisted several times. Then NTR acted accordingly and made the shot ok.
But after that when NTR removed his shirt there were blood scars on his back. Peketi said sorry for NTR.
But NTR said, "Brother! I'm happy. Only with your hard hit, the shot could become ok. Otherwise I couldn't be able to put a painful face in natural way. I should thank you". That was the blunt stubborn persevering dedication of NTR those days.