That, I would not know. [If he were paying attention, he would have been able to give a definite "yes". But why bother paying attention to those sorts of details when you'll forget them the next day?]

I was under the impression that such things simply... [Pause for dramatic effect, and he waves the hand with the string.] Happen.

Spontaneous, a whim, as one would say. Whatever whims are there in whatever or whoever governs this place.