When we make mistakes, our default reaction is to deny it and distance ourselves from the mistake we've made. We seem to take a very defensive position and do everything in our power to deny it and argue as long as we can to safeguard against being held accountable!
Why so? It's much easier to accept and move on trying to find a solution instead of aggressively denying everything...and of course much more efficient. We don't see it that ways though, I wonder why.
I ain't a saint either and have been guilty of the same on several occasions. It isn't disturbing to find out that I have been guilty of it, it's disturbing to realise, it took me so long to understand I shouldn't be doing it!