A son has just gotten his report card, it's not good.... "Hello father, here's my report card....", the son says. "All Cs!" His father is furious. "Son, if you don't improve your grades by next term I will disown you....if you don't get As, I don't want you to call me father any more!" .....next term comes and goes.....the son gets his report card.....that night he goes home....and right before he goes to bed his father asks about his new report card.... The son replies: "I'm very tired, let's talk tomorrow. Goodnight uncle!" (This joke was given to me by a friend in China)