Faced with the growing menace posed by disruptive passengers, and the need to improve the quality of their services and the comfort and safety they can guarantee their clients, airlines are considering measures such as: providing "cooling down" areas on board airplanes for unruly passengers; refusing to accept aggressive passengers a second time, or refusing to honour return portions of tickets; imposing an escalating scale of punishments, from deducting frequent flyer miles to suspending persistent offenders from future flights; encouraging and supporting crew members to take legal action against passengers who assault them.