Joseph (The Clone)
From Multiversal Omnipedia
Joseph was an elementary school student who was taught by Miss Shea. He and his friends Henry and Allan hated Miss Shea and so got themselves filthy by making mud pies, which resulted in Miss Shea sending the three to the bathroom to wash up. In the bathroom, the clone came out of the sink and attached itself to the boys. Miss Shea and Mrs. Grabowski heard their cries and tried to get to them, but the children were absorbed by the clone.