In 1974, he was pulled from a start against the Reds after five batters. He hit Pete Rose, Joe Morgan and Dan Driessen to start the game. Tony Perez managed to dodge four balls out of the strikezone, and Danny Murtaugh pulled him after Ellis threw errant pitches to Johnny Bench. Ellis later said that he was trying to send a message to the Reds in response to some comments made during spring training.
Ellis retired from baseball with a 138-119 record in 345 games. He was an All-Star in 1971, a year that he won 19 games. Ellis won the AL Comeback Player of the Year Award in 1976 when he went 17-8 for the Yankees.
Somebody cast a vote for Ellis to enter the Hall of Fame in 1985. He definitely belongs in baseball's Hall of Characters. Ellis died in 2008 while awaiting a liver transplant.
Dock Ellis' signature is not very pretty, but it is fairly legible.
I'm only putting autograph-related links in this blogroll. However, if you have a blog or a collector site not specifically about autographs, but with an autograph page or an "autograph" label on your blog posts, I'll put that link here.