When we pass stress on to others, we create a more stressful world.

It doesn't matter how we got stressed in the first place, or whose fault it was originally. As soon as we're stressed, it is our responsibility, and what we do with it is up to us.  

When we bring our stress forward, into the next thing we do, it has an effect. We make costly mistakes. We fail to notice novel solutions. We give other people a difficult day. And then they are liable to do the same to others. In other words, we become agents of stresscalation.