Mmmm. I love bound testicles so much. Almost as much as destroying them.
Lift the lid and place those balls between the lid and seat, then close the lid.
Now place all of the weights you have on the seat and crush those balls. If you don’t have at-least five pounds of weight on that seat you’re going to be punished severely. Who are we kidding. I’ll be doing it no matter how much weight you’ve placed on the seat.
Now remain there with that crushing weight for 5 minutes.