It was movie night at The Manor and one of the film's male
characters bellowed out, in a thick British accent, "Great Scott!"
I began to wonder exactly which Scott they might be referring to.
At one time it was common to say "great God", but during the
Victorian 19th century, a prudishness fell on the English speaking
world and it was replaced with expressions like "great sun",
"great Scott" and "great Caesar's ghost". The "Scott" in question
is not Rob Roy, or even the author Sir Walter Scott, but a popular
U.S. general, Gen. Winfield Scott, a hero of the Mexican War.
Yep, it's this one they're all shouting about!