A storm drain must be the worst possible environment for a child to learn martial arts.
It's pitch black, smells of shit and you'd keep slipping over with all the water everywhere. And there's no facilities for hand washing before you handle your post-fight pizza.
( Turtle Power & Knuckles, Mon 15 May 2023, 22:12, archived)

All of those things help build character and valuable intestinal bacteria

( mofaha ┐( ˘_˘)┌ ʅ(́◡◝)ʃ, Mon 15 May 2023, 22:18, archived)