By way of contrast, today (two days after my return to Sydney) I found myself waiting in a line for a women to pay for her parking at one of those automated payment machines you'll find in many shopping centre car parks. She seemed to be frustratedly fumbling for coins to feed the machine and everyone in the line was getting quietly frustrated having to wait. Trying to assist her I shouted, "Would it help if we gave you the right amount of money?". She rather viciously shouted back "I've got the money. The machine keeps rejecting it. Why don't you mind your own business!".