You may laugh at this.....
A long time ago (4-5 years), I swore I would never learn HTML. I never imagined myself ever wanting to have a web page and therefore saw no reason to learn something that would probably be outdated and useless in a few years anyway.
Fast forward to the end of April, 2003. I had been reading other weblogs for a few months, liked what I saw, and decided I wanted to try having one of my own. I got an account at Blogger and learned barely enough HTML to write my very basic weblog (<a href>, <b>, <i>, <blockquote>, <br>, and <p> tags).
That was actually enough for me - for a little over 2 months. I looked at various other blogging applications and decided to give Radio Userland a try. I liked Radio Userland, but I wanted to heavily customize the templates - which meant I needed to learn a lot more HTML than the little bit I knew.
Over the following month, I learned enough HTML and CSS to rebuild my templates from scratch. There's still a lot for me to learn, but I think I have the basics down. I'm even giving advice to new bloggers in Radio's forums.
What got me to remembering this is a comment in Radio Userland's forums by David Matchett:
Kool! I think I've heard of HTML somewhere...
Just a few months ago, that was about all HTML was to me too!
Additional note: One other thing I swore I would never learn is PowerPoint (MS Office). I don't think I'm in any danger on that one yet.