Which reminds me... can any FReepers from Australia tell me if this is true: Turning your glass upside down at the dinner table is a challenge to a fight to the person across the table from you.
I'm guessing Urban Legend, but just to be on the safe side, if I didn't want wine for dinner, I moved my wine glass far away from me, rather than turn it upside down.
Traditionally the person who doesn't want wine simply tossed the unused wine glass against the wall as a subtle signal to the waiter.