And the walls just stare back

Every few months, I start reading old blog posts I've made.  I'll just kind of bring up a post, start reading, and occasionally... I'll laugh.  I know it's a bad thing to laugh at your own jokes - it's no different than that guy who only listens to music he's recorded himself, or the writer who proudly proclaims "everyone but me is a hack!". 

But, it sneaks up on me.  I usually have almost completely forgotten the post in question, and it's as if I'm reading someone else's blog.  "This blog is pretty funny," I'll say to myself.  "Why can't I write like that?"

Then there's this awkward pause.  I stare at the walls.  And the walls just stare back.