THE BRAIN TEASER

Boss says to secretary: For a week, we will go abroad, so make arrangements. Secretary makes a call 2 her Husband: For a week my boss and I will be going abroad, so look after yourself. Husband makes call to secret lover: My wife is going abroad for a week, so let's spend the week together. Secret lover makes a call to a little boy whom she is giving private lessons: I have to work for a week, so you need not come for class Little boy makes call to his grandfather: Grandpa, for a week, I don't have classes 'coz my teacher is busy. Let's spend the week together. Grandpa ( d boss ) makes a call to his Secretary: This week I am spending time with my grandson. We can't attend the meeting any longer. Secretary makes a call to her husband: My boss has some personal matters to attend to, so our trip is cancelled. Husband makes a call to secret lover: We cannot spend this week together; my wife has cancelled her trip. Secret lover makes a call to little boy whom she is giving private lessons: This week we will have classes as usual. Little boy makes a call to his grandfather: Grandpa, my teacher said this week I have to attend class. Sorry I can't keep you company. Grandpa makes a call to his secretary: Don't worry, this week we will attend that meeting, so make arrangements. Question - WHO CONTROLS THIS CHAIN???