" [Calvin, who has the chicken pox, calls Susie on the telephone.] Susie: Hello? Calvin: Hi, Susie! It's me, Calvin! I was wondering if you'd like to come over and play. Susie: Why, sure! Boy, I don't think you've ever invited me to... Calvin's Mom: Calvin, what are you doing? Calvin: Nothing, Mom. Go away. Calvin's Mom: You're contagious! You can't have anyone over to play! "