Damon Wayons gets Clayne Crawford gets fired from Lethal Weapon and QUITS??

After everything he went through to get CLAYNE CRAWFORD fired, DAMON WAYANS casually announced that he's leaving the "Lethal Weapon" TV show mid-season . . . because he just can't do it anymore.

He said, quote, "I'm going to be quitting the show in December after we finish the initial 13 [episodes].  So I really don't know what they're planning, but that's what I'm planning.  I'm a 58-year-old diabetic, and I'm working 16-hour days . . .

"I'm done.  Like Murtaugh said, 'I'm too old for this.'"

He also said he's missing too much family time, and he wants to return to the stage and, quote, "try to find my smile again." 

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