Ok, maybe the title is a little wrong. You may have control what happened or what happened might have been a direct result of the choices you made. But, ultimately, their are to many people for you to control everything that happens and eventually something will happen that you did not wish. Strangely, we tend to get upset or annoyed by it, but our upset and annoyance does nothing to effect what happened and we have let the past control us. Ultimately, the one thing we can control is our reaction to what happened; which sometimes just means to buy time.
Now an example in my recent history. I deal with following a lot of processes and I got to the last step of a long process just to have the purse accuse me of not following the process and asked me to go back and follow it or if I had to have looped them into each of the steps before so they cloud verify. Now I had done this process several times now and never had this occur, so my first reaction was to get annoyed at the delay, but that annoyance was not moving the process forward or having any positive effect on the new barrier, it was only hurting myself and clouding my judgement. I did have to step back until I could get a clear mind once more and then push forward once more. I did take some time to ask what I could adjust next time to prevent this confusion next time and keep the process as smooth as possible for all.