An airport ticketing agent was working at the counter and began asking a passenger the required security questions. "Have you received any objects from an unknown person to carry aboard the airplane today?" "No," said the woman. "Did you pack your own suitcase?" she inquired, pointing to the traveler's rolling carry-on bag. "Yes," she answered. "Has your bag been under your control since you've been in the airport?" "Well, no, not exactly," the passenger said with a sigh. "The silly thing keeps either trying to go every which way, or else it's trying to trip me. I feel like I am under IT's control."