Assuming

Making assumptions simply means believing things are a certain way with little or no evidence that shows you are correct, and you can see at once how this can lead to terrible trouble.
The true problem with making assumptions, is the belief that they are the truth.
Some have the tenancy to only see what they want to see and hear what they want to hear instead of perceiving things the way they are.
Its important not to assume you know why someone does something without finding out why. It can be too easy to make a wrong assumption. A person can literally drive themselves insane trying to figure out other people’s motives. The problem with assuming is that if you assume wrong, you can create all kinds of unnecessary hurt and pain for both of you resulting in nothing but issues.
Why put yourself through all the drama associated with assuming the worst out of people? It does nothing but waste mental cycles and energy that could be used for something much more positive and productive.
  It always pays to know.
Communication is the key to knowing.