NOOOOOOOOOOOOOOOOOOOO!!!!!
There has to be a way AROUND this. Say you've been planning this vacation with your wife for a long time. Say you'll work other days. Or just quit. But you can't miss the hangs! Think of Joey D and George Benson! Think of Marino coming all the way from Italy just to see you. What if the guest of honor this year is Herbie Hancock? You can't afford to not be there.
Eh, you gotta do what you gotta do. We'll miss you.
Yeah, well I'm actually a co-founder of my company so quitting is probably a bad idea.

Being a co-founder gives me a lot of freedom in many ways. But in other ways it's a ball and chain.
It's a great day job, though, so I've really got no reason to complain. Don't get me wrong -- I still complain. I just have no reason to.

I will definitely miss you guys. Say hi to Herbie from me. <sigh>
--Dave