Old Army story - A training Sargent was giving a lecture/demo on bayonet fighting to a group of trainees and said, " If upon thrust your weapon should strike bone and stick, fire the weapon and let the recoil unstick the blade". Noting a frown on the face of a trainee he asked, "Any questions, soldier?".
The trainee replied, "Sargent, if I have any bullets, there's not going to be any bayonet fighting".
Dono