agreed but its going to add to your possible flake score. I would if I was a recruiter. One time, good reason, and it would be all but unnoticable oa change but multiples or if your excuses seem just that then it will be noticable. When it comes down to it they want to mediate as good a deal all around as fast as possible. They will preference the best option which is not only going to be education and background but also likelyhood of completion. They will call you but after they call some others.