People Standing Weirdly In Public

"Sit up straight!" "Don't slouch!" I'm sure we've all heard those admonishing words more than once from our mother when we were growing up. And most of us begrudgingly complied with her command having no concept of the anatomical and biomechanical rationale behind her persistent prodding. In fact she probably wasn't aware of all the implications of poor posture herself! But somehow, some way your mother always seemed to know best.