I once wrote an early web server using his Frontier Scripting platform which ended up serving up a large corporate website that my company built. Crazy early days of the web. So, I got to 'know' Dave a bit online.
One time I was at a bar (that no longer exists) in San Francisco at some MacWorld event in the 90's and Dave showed up. He and I had previously had some emails back and forth that were not necessarily pleasant, probably some silly flame war of some sort that I can't remember. I was definitely young and stupid and this was the .com 90's!
When he was near me, I jokingly said: 'Hey Dave, bite me!" and a bunch of my friends started laughing. Mostly because they knew his reputation for flame wars. He immediately got over the top furious with me, said 'Never say that to me again!', walked away and we never spoke again.
Anyway, I just want to apologize, I shouldn't have said that.