Why do some people lack a sense of humor?

[henryp]

Maybe this is a silly question. However, I have often come across people throughout who find me "annoying" simply because I have a sense of humor. Sure, I'm not some kind of comedian, but I can find humor in just about anything. Now, I do know when to take things seriously. Like at a funeral for instance. You get the idea. So why is this? Why is it some people just don't have this trait?

People who try to be funny but aren't can be annoying.  Most people find themselves hilarious.  Most people aren't particularly funny despite finding themselves hilarious. 

If you're coming across a lot of people who find you annoying rather than funny, there's a good chance it's your material, not their sense of humor.

--An easy example to make the point, is imagine how natural it would sound if Michael Scott from The Office had the same complaint as you.