Airlines could provide larger, more spacious seats, with more leg room and wider aisles, and they could let the passengers smoke again. Airlines can, and are beginning to, limit the amount of alcohol that passengers drink on board, and to refuse admittance onto an aircraft if they turn up at the gate drunk. This may seem extreme, but the problems seen in flight are similar to the problems seen in city centres all over the world on a Friday night. Only in these instances, the problems occur at 35,000 feet, in congested airspace, and could have a life threatening effect on 200 - 300 other passengers. Unlike the Friday night reveller, the air rage assailant can not be thrown out of the door.