[laex]

Interesting. It's quite common in Australia to thank the bus drivers.

[NeutronBoy]

Yeah it might just be a habit, but I say thank-you to heaps of 'service' workers - just a simple 'Thanks mate' when I get off the bus, or get my coffee, etc. Why wouldn't you? I mean, I know it's their job, but you can still be polite about it.