I agree with both of you. In fact, I make a concious effort to not remember anyone's birthday.
I don't know when my parents were born, but I still call them so they don't act upset. Of course, someone has to remind me.
I don't get excited about Christmas or New Year's or my own birthday. It's just another day as far as I'm concerned. It seems so arbitrary based on the orbit of the earth and some dude who died 2000 years ago.
I think someone needs to throw Tynan an anti-surprise party. Get him all worked up on his birthday and drop hints that there's going to be a party... Then let it all fizzle out when nothing happens :)