You should try having a conversation while serving people on tills about when someone penetrated airport security and threw a suitcase bomb at an aircraft before a police sniper kneecapped them, even more surprised how many customers never notices
PS: I was on a till in Terminal Two Departures
It's more fun when I'm speaking with my better half about the finer points of engineering principals for rail or road vehicles, aircraft, photography or electronics, you've never seen so many clueless looking people outside of G-A-Y...
And I have to talk loud, because the Cummins QSK-19F engine under me is too loud, especially combined with the aux compressor on corroding spring damper mounts that's rattling