I had a colonoscopy years ago when I was engaged to my now-wife, and when I woke up from the anaesthesia I just babbled about how much I loved her. At no point did I come remotely close to doing a Nazi salute.

The Sydney airport line uses the exact same rolling stock as the rest of the suburban network (and the airport stations are just stops along the line, not their own dedicated line). The surcharge is just revenue raising because the train is the easiest way to get to the airport, so fuck you, pay up.