These will be presented in point form. Scotch whisky must be distilled in Scotland in order to be called Scotch. Scotch can be bottled elsewhere, but it must be distilled in Scotland. It is traditionally believed that whisky came to Scotland from Ireland. Nobody knows who invented Scotch.
Most people consider it gauche to serve single malt whisky with any mixer stronger than club soda.
We think it is a waste to drink single malts with club soda, as the carbonation interferes with your appreciation of their subtler qualities. We've known scotch snobs who claimed to find even the addition of ice cubes disgraceful, but we don't see any need for that level of pretentiousness. Nearly all scotch is chilfiltered, which removes solids that cause the scotch to become cloudy when ice cubes are added. This was done to appease the tastes of American consumers who did not like their liquor to turn cloudy. Scotch must have a minimum strength of 80 proof.