Another good example right there. I was going to mention her in my earlier post, but forgot.
Heck, George Carlin turned into an angry old man his last years, too (and he was only 71 when he died). When he did stand-up routines, he would just attack anyone and anything and not care what others thought. Not that he ever had too many qualms about offending people, but he got a lot worse towards the end.