The classic song by Carly Simon, "You're so vain", has this chorus:
You're so vain
You probably think this song is about you
You're so vain
I'll bet you think this song is about you
Don't you? Don't you?
It often comes to mind when I am trying to write things. I find that a surprising number of people in my life read my online writing, including clients. Once before, I ran into some trouble with one when I wrote something that the client took to be a dig at them (I won't specify which post that was). I assured them that it wasn't, but the whole incident did make me a bit wary about just writing what was on my mind without a lot of thought about it.