"Since this is your first class, take a wooden sword and practice some moves with it."
"A wooden sword? How old do you think am I? Five? Six? I'm already a man..."
"Take a wooden sword, and as you progress you'll use a real sword."
"But..."
"But nothing. Wooden sword."
But he disobeyed and took the sharpest sword he found to prove his master wrong, and way before the class ended, they had to take him to the he hospital in a hurry due to all the cuts he had done himself practicing with a real sword.
The end.