== Crazy mental institutes == 

 funny coincidence... in the film while still in England young Chaplin is seen pulling a cart of scrap mental up to the door of their apartment... close up of him going indoors.. and i think 'Gee.. the peeling paint on the front door, bet there was lead in it too, and gee, how many people died or got sick or went crazy!', then the scene shows him going up stairs and we're shown the leather gloves his Mum is making.. hmmm mercury! ..then the camera pans and there's Hannah near fetal position in the corner..  mad as a hatter!! makes one think... not genetic, but environmental....?