On Fri, 8 Jan 2016 14:05:33 -0500, Greg Guarino
wrote:

On 1/6/2016 5:43 PM, OFWW wrote:
And then a North American heads to Australia and gets confused because
the toilet flushes opposite than it does here.

The water goes ... UP???
The water when it drains spins in the opposite direction. Toilers
designed for here would not flush properly there.

The line of demarcation is the equator.