A mother taught her son to go to the bathroom by the numbers.

"1. Open your fly. 2. Take out your equipment¹. 3. Pull back the skin. 4. Do your business. 5. Let the skin forward. 6. Stow your equipment. 7. Close your fly."

She checked on him often to make sure he had learned² his lesson, and each time heard him through the outhouse door saying, "1, 2, 3, 4, 5, 6. 7."

She was pleased with his progress until that day when she passed the bathroom door and heard, "3-5, 3-5, 3-5."