Recently Sha'ba has started braying for the first time, in the 3 1/2 years we've had him. He was shut down mentally when we got him, was very thin & it took months for him to even bother to look around. He finally started "huffing" at us a couple of years ago, especially at feeding time. Just in the last couple of weeks we've heard him bray at least twice. It's not much of a bray, but for an old guy probably over 40 years old, it sounds pretty good. Maybe it will get louder with practice.