Lesson 13's Exercise
Make him clean the toilet all over. Then place his testicles on the toilet side so that when the toilet lid falls it will fall on his testicles. Finally, drop the toilet lid on his testicles.
Afterwards put his testicles under and behind the toilet lid so that they are hanging toward the water. Then sit on the toilet lid. Finally, start pushing him away from you for 2 minutes.
If you passed congratulations.