Basically it's a negative gain, so it's kind of hard to describe.
Let's say someone starts yelling at you at an intersection. You're tired from work, and get "keyed in" by the verbal attack. Various things could happen here, depending on what part of your past got restimulated. Whatever it is, it will be to one degree or another irrational, as it won't be based on present time.
If one is Clear, one won't handle the situation irrationally, unless one starts dramatizing another reactive mind, but then we are getting into the upper level phenomena. Even then, one can easily spot it and knock off the dramatization, whereas someone not Clear is more like a puppet.