Kerri McKinnon of Nahant said she wanted to take her son, Brian, to a Red Sox game last week so she wrote a letter explaining the situation to his teacher, WHDH-TV, Boston, reported Tuesday.
"I said 'allow Brian to be excused, he has a case of Red Sox fever and Fenway is the only cure,'" McKinnon said.
Brian said his teacher laughed when she read the note.
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