While I was out late this afternoon, my wife called me to let me know the kid had started smoking. When asked, the kid had no words or concept of what she was doing, but she had very distinctly picked up the motions from somewhere: she had taken a cigarette-sized piece of foam tube from a toy called Toobers & Zots, held it up to her mouth with two fingers, and was puffing on it.
We're stunned, frankly, because we can't imagine where she'd even see someone smoking. [yes, we're that smoke-free.] The only explanations I can come up with: