Rabbit joke?

A precious little girl walks into a pet shop and asks in the sweetest little lisp, "Excuthe me, mithter, do you keep widdle wabbits?"

As the shopkeeper's heart melts, he gets down on his knees, so that he's on her level, and asks, "Do you want a widdle white wabby or a thoft and fuwwy bwack wabby or maybe one like that cute widdle bwown wabby over there?"

She, in turn blushes, rocks on her heels, puts her hands on her knees, leans forward and says in a quiet voice, "I don't fink my pet python weally gives a thit."