I saw him in concert once at a small place. Friend bought tickets for him, his wife, and and me and my girlfriend.
About 5 minutes in one speaker blerw or something. It was incrediblhy loud and wasn't music at all. The crowd started getting kind of irked and he got louder. People started leaving and it was starting to get ugly and he was mouthing off to them. We left before a fight broke out. Pretty sure he was 3 sheets in the wind by the time he got on stage. It sounded very bad.
Probably 20-25 years ago.