I have a friend who I don't open up to much. After some thought I realized it's because it tends to backfire. Sometimes it's an exchange of glances, sometimes it's a very subtle comment. Sometimes it's even more subtle--it's by omission. It's what they don't say, a disrespect by disregard, avoiding my opinion on something I happen to know a lot about while asking others who don't know, or arguing with me when I do in fact know what I'm talking about.
At first I didn't know why some of our exchanges left a bad taste in my mouth; I thought it was just me.
But I finally said fuck it. I should trust myself, right? So I've come to take a close look at my reactions to things, trying to recognize sabotage when I see it. I had a very strong reaction to something writerly recently, and I realized there might have been a bit of sabotage involved. It's too subtle to pinpoint and cloaked in thick good will, but I think it's there.
And it's important to avoid. We as writers--hell, as people--have plenty of fears and doubt. We sure as fuck don't need someone adding to the mix, eh?