Disassociation or what happens when your mind wanders

You are walking along the street there is no one else around and then you think of your neighbour
and you thing if that guy says one more word to me, I know what I will do...and you act out a scenario of a verbal or even psychical confrontation, you reprimand yourself for this kind
of mental imagining and walk on but as you cross the road a car comes whizzes by unusually close
and you have an imagining of shouting at the driver, he getting out and you having a stand up fight

This kind of thinking is called 'Disassociation' and in the main is harmless if one realises how one is thinking, however there are healthier paths of positive outcomes, that are not confrontational
and are convivial and constructive.

So if you are going to disassociate or mind wander conceive of positive outcomes.