I do that too. I call them my "blurt-outs." I'll say or write inappropriate things. I did it at work when I was in a mixed state & wrote a note when I got very irritated at a co-worker who kept making stupid mistakes that I had to correct. She wrote me a note back that "when you are perfect (meaning me)" she will take my comments into consideration.

I told my husband what I wrote & he said I was way out of line & that I was causing a lot of tension in what had been a friendly working relationship & that I had to apologize. I did write her a note saying I had been under a lot of stress that day & I was sorry I took it out on her & that I appreciated her & enjoyed working with her & asked her to please accept my apology. She & I do have a great working relationship & are friends, but I could have really created a lot of problems with that impulsive venting I did.