I still don't have a clue what you're on about.
You can either set behaviour values/properties initially or do it through events at runtime.
You can control them however you want.
Are you under the impression that behaviours are games in their own right?
They're not, they just provide a set of useful conditions, actions and expressions that might be otherwise difficult or time consuming to code on your own.
Nothing is being interupted.
You can use other objects and behaviour conditions, actions and expressions in conjunction with them.
It's how you make your game.