PTP,
Well said. Did a little bit of security work about 20 yrs ago. Not to mention countless guard duties during 21 yrs in the army. (many of them extra training my SSM thought I needed
For civvies, it is a thankless, mind numbing, sh1t paid job. But from my many experiences of travel out of oz, the courtesy and respect you receive from them is commensurate with what you show.
Be thankful people you do not have the kind of security and staff that plague the airports in West Africa.
At least in Oz they don't demand you open your wallet and ask "do you have anything for me?"