The Teacher and the Punishment

I started hanging out with Hamada in the sixth grade. He loved movies and used a clear plastic case with movie flyers tucked inside as a desk mat.
At the time, I had watched quite a few Jackie Chan movies, but Hamada was on a different level; he seemed to watch movies of every genre.
Once, when I asked Hamada who his favorite actor was, he replied, "Clint Eastwood." That was a very sophisticated taste for an elementary school student.
Then, Wada chimed in from the side with a smirk, saying, "Kurikinton?"
"..."
"..."
"Kurikinton?"
Wada repeated it once more.
I sensed Hamada's quiet indignation and thought for sure Wada would get the "toilet punishment."
Sure enough, Hamada said solemnly, "You're boring. Toilet punishment."
Eishi, Sato, Masuda, and I, who happened to be there, stood up, and the five of us, including Hamada, grabbed Wada's limbs and hoisted him into the air. Wada resisted, of course, but we didn't care about that. After taking off his indoor shoes, we threw him onto the floor of the boys' restroom.
"You bastards!"
While Wada came out shouting and putting on his indoor shoes, we teased him by shouting, "Toilet human!" "Wah!" "Gyaah!" "Gross!" and ran away. Wada chased after us, running. It was terrifying because if we got caught, we would surely become toilet humans ourselves.

One time, during homeroom, Mr. Nakazawa brought it up, asking, "Is there something called a 'toilet punishment'?"
"Apparently, you grab someone by their hands and feet, carry them to the restroom, take off their indoor shoes, and throw them on the floor?"
"..."
"I was surprised when I heard about it."
"..."
"To go out of your way to take off their indoor shoes..."
The teacher told us that we were in the sixth grade now and should stop doing such stupid things. He had a half-smile on his face.