Quote of the Day (sister)

"Noooooooooo. Please don't tell her about this." - Plea from a high school student after I threatened to tell her sister about the mistake she made in class. My student always makes fun of her sister's mistakes, but today she had accidentally written that  5 - 2 = 7, and it threw off all of her remaining calculations. Her sister loved hearing this new information and told me she would ask "Hey [student's name], what's five minus two?" right after school. (1/29/16)