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When the kid in front of you gets so bored, they flip out and doodle all over your paper until you get an F. They don't care if you cry or if your paper looks like a madman's lunch.
The kid drew a mustache on my face and wrote 'F' in big letters.
They drew a monster on my paper and said it was going to eat my brain.
They wrote 'I hate math' in big letters all over my paper.