A Husband and his wife agreed that anytime they want to have sex, they will call it a 'PHONE CALL' so that the kids will not decode. One day, the husband sent his son to tell his mother that he wants to make a phone call. Mother replies: Tell your father that the Network is bad today. Husband: Tell your mother that if there is no Network at home, I will go to the "Public Phone". Wife sent back, tell your father that if he dares goes to a Public Phone, then I will open a " Call Center " at home."