There was a time, a few years ago, when four G.A. aircraft arrived together at YPKG from YFRT. All were heading to Perth airfields for the last of the Red Bull Air Races there.
(A couple of Moonies; a Rockwell Commander and a Bonanza.)
After refuelling, we all wandered up to the terminal for a coffee and a bite to eat. For it was lunchtime.
Departure from the terminal was more complex than before. (In the past, there was a door that lead out on to the airfield for people such as us. No more as it was locked.) We all had to be screened. I failed the tests. Very pissed off, I was prepared to strip off to naked to prove that I wasn't a threat. Fortunately that provoked security to let me through on to the tarmac.