Most Scots dont put water in whisky or sugar in porridge
Quite a few mix it with Irn Bru (or buy it ready mixed). Salt on the porridge.
A few more things:
Most Scots don't wear a kilt everyday (if ever).
"Fish and Chips" is known as a "Fish Supper" no matter what time of the day you eat it.
In the west it is salt and vinegar (as it shouldbe!) while in the east it is that disgusting sauce!
Lots of Scots don't actually know the words to the second verse of "Flower of Scotland".
William Wallace did not paint his face blue to look like mel Gibson.