Anyone who knows that their D&D Character with a 20 INT isn't invincible. You have to have a combination of scores in all of the attributes to succeed. Unfortunately, a lot of people don't apply this to real life.

That being said, I often find that I over-think tasks, and end up never completing them because I try to make them perfect, and find out at some point that I can't.

What's more important than "perfect" is "good enough", and sometimes a high IQ won't allow you to accept that.

It's one of the things I hate about myself at times.