It's contagious A teacher is instructing her fourth grade class, and she's telling them that the word of the day is 'contagious.' She asks if anyone can use this word in a sentence, and several students raise their hands. ""Carl,"" she says. Carl says, ""My dad told me to stay away from kids with mumps 'cause they're contagious."" ""Very good,"" says the teacher. Then she picks Suzie, who says, ""The atmosphere was contagious."" The teacher says, ""Excellent, Suzie!"" Then she notices that littl…