Well, I wouldn't use either word, but if you insist on picking one use has, thus:
The set of circumstances has made me startle from my thoughts at the Boomerang Cafe.
However, why not just say:
The set of circumstances made me startle from my thoughts ....
Hm, not much context there, but perhaps better would be something like:
The plates and saucers crashing to the floor broke my concentration.
Student or Learner