An EL AL Boeing 747-400 Freighter made a 180° turn on runway 22L at Liege Airport and just after he finished the turnaround a small Cessna Citation Jet took a shortcut and entered the runway right in front of the Boeing 747. The heavy Boeing had to wait until the belgian citation jet departed.
EL AL Cargo is a daily visitor at Liege which is their european home base. They only have a single Cargo plane and they operate to two destinations. New York JFK and Tel Aviv.
This was probably a good move to save time by the ATC. The wake turbulence of the Cessna won't affect the huge 747 at all but if the 747 departed before the Cessna, the Cessna would have had to wait for a long time as the wake turbulence from the 747 would literally blow the Cessna away. This in turn would require a longer hold time for the Cessna, occupying the runway and holding other jets behind it as well.
National Geographic Documentry: Here we see the Predator 747 in his natural habitat. It is feeding time and the predator is stalking his prey. The tiny Cessna goes about his business unaware his predator is closing in!
