A mother goes to school to talk with her son's teacher.

• Why are you going to suspend my son ?.
• Because he has blatantly copied his partner.
• And how do you know that my son has copied and not the other boy ?.
• Well, you'll see, ma'am, because the first nine answers were exactly the same, but when she has reached the last one, her son's partner had put:
• I do not know.
  And your son has written:
• Me neither.