Bourbon drinkers don't drink Scotch, and Scotch drinkers don't drink Bourbon.
It's just not done. Not in polite company, anyways.
Gettin' High--The Flairs (1954)
These guys from DC drink Sneaky Pete, a cocktail made from rye whiskey, gin, wine and beer. Drink too much, and it will have you charging like a jet T-99.
Crawlin'--The Clovers (1953)
You're not supposed to mix the grain with the grape, so I'll just have some Kentucky bourbon.
Early Times--Dennis Binder (1954)