For the time that I've been out just now, I've already seen three spats happen back to back. Hot under the collar caller on the phone, very tense customer service at Nokia care, Road rage at the T-junction, all between Aussies.
Thankfully my round at the Nokia care counter turned out to be a pleasant and beautiful experience. Definitely one of my defining moments for today
(Which resulted in one of the rare moments where I didn't get indignantly agitated when a hawt dude checked me out repeatedly.., which is saying something).