That's awesome. I was lucky enough to catch him in his later years a few times with sabbath. Most singers later in life have a hard time hitting those high notes and have to drop the songs a key or so. It usually ends up sounding not quite right. In Dio/Sabbath's case, it just made them sound heavier. Luckily my ears never rang after a heaven and hell show. It was only after the Motörhead shows that would happen

Speaking of spinal tap, we (my new hire class) had our spinal tap moment at TK. One evening we got lost and we're aimlessly walking around up and down stairs, down hallways, trying to find an exit.