Never End a Sentence in a Preposition

A girl from North Carolina and a girl from California sat side by side on an airplane.

The girl from North Carolina, being friendly and all, said, "So, where ya from?"

The California girl said, "From a place where they know better than to use a preposition at the end of a sentence."

The girl from North Carolina sat quietly for a few moments and then replied, "So, where ya from, bitch?"