Grammar Humor - Don't end a sentence with a preposition.

From an email I received (an oldie but a goodie) -

Two ladies are sitting next to each other on a plane. One is a Yankee and the other, a Southern Belle. The Southern Belle turns to the Yankee and asks,

"So where y'all from?"

The Yankee turned her steely gaze to the Southern Belle and replied,

"I am from a place where we do not end our sentences with a preposition."

Silence ensues and the flight continues until a few minutes later when the Southern Belle again
turns to the Yankee and asks,

"So, where y'all from, bitch?"