[ZenGum]

That's Doctor Pretentious-Wanker to you, sir!

I only use the Dr. when dealing with my bank and landlord. I might be introduced as Dr Zengum if I'm presenting a conference paper or something but would be addressed as Zen in pretty much all situations. This would include being addressed by students.

Like the UK, Australia is stingy with the use of professor. Of five levels of Academia, the top is professor, then associate professor, then senior lecturer, lecturer, and associate lecturer (me). Maybe 10% of continuing-position acedemics are professors, maybe less.