The dog jumped out of the hold when the door was opened by ground staff. It chewed though it's cage and the webbing inside the hold.
This has happened at every airline in the world that accepts animals. It happens at QF and used to at AN.
Don't believe every thing you hear airsupport.The best source is the airport airside forums where they mention all reported incidents relating to taxiways and runways.
Your hair would stand on end.