I haven't had issues with Tiger at Sydney yet, but I have observed them request a pushback at Perth with a cargo door open and request taxi at Hobart with an engineer/dispatcher still attached. The Hobart occasion blocked us in while we were ready to taxi, while we were lucky to be blocked in Perth, where we took off while that aircraft was still on the bay.
I haven't seen this from QF/DJ/JQ and I hope Tiger pilots (some of whom I count as friends) don't do it to be smart, it's simply poor airmanship.