THE teenage mum who posted picures in Facebook of her baby smoking a marijuana bong explains why she dunnit. A teenage Florida mom who posted a Facebook pic of her baby appearing to do a bong hit is in some deep baby shit with child welfare investigators. The 19-year-old mother is passing off the pic as a joke she was playing on a friend. Speaking to Sky News by way of Facebook, the mom — whom we call “Mary Jane” — said it’s clear that the photo’s all in good fun. “If u look at the picture u can see that there is no bowl in the TABACCO (sic) pipe. And i took a pic to show one F**king person and it was a mistake. I would never ever ever let him get high,” Mary Jane told Sky News. But Florida authorities are taking it seriously: