People that can't substantiate the drivel they write. But then you take a deep breath and move on with other things.
In situations where you can't just walk away well then you still have to take a deep breath and then start to deal with what is most pressing and important. Never be afraid to ask for help, someone may have had the same problem and be able to help you figure it out.
Taking a nice long drive is always a good way of alleviating stress, if you like driving that is