He's getting dumber as he gets older. I remember seeing Lethal Weapon 4, and his whole "that ain't right" mumbling about the illegal immigrant Chinese family that he decided to house. At that point, methought; there's something askew with Danny Glover... Sure, it was just acting, but I felt the dialog had been contrived to suit his standing.

Someone should compose a video of all the times Danny Glover says, "That ain't right," because he does it in several movies.