Tried the same thing at Heathrow. Only to be told by Ground that he had us on the monitor(video) and that we should call back when the Tug driver has finished adjusting the bar.
So yes I spose I'm guilty of trying to get away as soon as possible, who hasn't tried to get an early mark??
Glass houses and all that!
http://images.ibsrv.net/ibsrv/res/sr...inksbuddie.gif