With all the comedic entities there have been over the years, it seems that all of them have come from hollow beginings that led to sadder endings. Fanny Brice, the original 'Funny Lady" (Pun definatly intended) came from a broken lower class home, and throughout her life she struggled with love.  Lucille Ball's father died when she was a child and her mother left to support her family.  And the brilliant Carol Burnett also had a similar begining to two alcoholic parents, one dieing and the other dieing soon after.  I realize I've only included females here, but I've never studied male comic, I'm presuming theres a similar effect though.  But WHY?