A judge told a former Uber driver accused of raping a passenger in his car near the iconic Hatch Shell to “please knock it off” when the widowered father of 12 began sobbing uncontrollably at his arraignment today. Mayanja Daudah, 37, of Waltham, whose lawyer said has 12 children, including three sets of twins, was ordered held on $100,000 bail by Boston Municipal Court Judge Richard Sinnott pending a May 1 pretrial hearing. Sinnott further ordered the Ugandan citizen to surrender his passport and be fitted with a GPS tracking bracelet in the event he’s released.