A private failed to notice a young lieutenant and did not salute him. The lieutenant said sternly, "You did not salute me. For this, you must immediately salute one hundred times."
Just then, the general arrived. Seeing the poor private about to begin, he exclaimed, "What's all this?"
The lieutenant explained, "This ignoramus failed to salute me. I'm making him salute one hundred times as punishment."
"Quite right," replied the general, smiling. "But do not forget, sir, that upon each occasion you are to return the salute."