"Doing a runner" usually is taken to mean turning up for your flight, getting to your destination and not going back.
Usually done when you figure its not worth the effort of jumping thru the hoops to get out normally,ie house /car contract you cannot get out of without serious loss of dosh and therefore if you cannot settle your loans you will be tossed inside a stinking Dubai gaol, never to be seen or heard of again.
get the picture now ?
