To approach the stranger is to invite the unexpected, release a new force, let the genie out of the bottle. It is to start a new train of events that is beyond your control.
I have always stated I designed the stadium as a toilet seat. I don't care if this is a great cultural event or a national symbol. It has nothing to do with me. It deals with the city.
It is not given to human beings, happily for them, for otherwise life would be intolerable, to foresee or to predict to any large extent the unfolding course of events.