The Box of Shame is a cardboard box which was created by Miss Hattie, with the simple words 'Box of SHAME' on it. Children who upset her or misbehave in anyway will get sent there as punishment.
A few things that weigh more than the strength of a child were kept on the box's hood, to prevent children from escaping the Box, and a part of the cardboard is also cut off so the students could breath easily, and may also be for giving them food.
Margo Gru, Edith Gru, and Agnes Gru were sent to the Box of Shame after being sent back to Miss Hattie's Home for Girls as of a request from Dr. Nefario. It is unknown for why they were forced to sit in the Box of Shame, possibly Miss Hattie believes that they were misbehaving during adoption.
Penny was also one of the children who were sent to the Box of Shame, for reasons unknown.
- It is possible that Miss Hattie made a rule for all children, to say 'hi' or 'hello' to the students kept inside, and for them too to reply.
- When Margo, Edith, and Agnes are punished, apparently the original box is too small, so Miss Hattie makes two other boxes, "Box of SHAME #2" and "Box of SHAME #3", and have three girls stay in the three boxes.