We drove the Great Ocean Road for a time. Then I pulled a U Turn, and lined up on the proper side of the road - the American side - despite the fact that I had been driving in Australia for over a week. A senior moment before I was a senior.
I saw this strange guy coming at me and frantically blinking his lights. My light went on and I pulled back into the proper lane for Australians.
The other driver was not angry - apparently used to daft American or Canadian drivers on the wrong side of the road. We exchanged cheery waves and went on.