Some annoying interruption!

(Hannah More, "Practical Piety")

We must trace the hand of our Heavenly Father in those daily little disappointments and the hourly vexations which occur even in the most prosperous circumstances, and which are inseparable from the condition of fallen humanity.

We must trace that same beneficent hand, secretly at work for our purification and our correction in the imperfections and unpleasantness of those around us, and in those interruptions which break in upon our favorite engagements.

We are perhaps too much addicted to our innocent delights, or we are too fond of our leisure. A check then becomes necessary, but it is given in a most imperceptible way. The hand that gives it is unseen and unsuspected—yet it is the same gracious hand which directs the more important events of life!

Some annoying interruption
breaks in on our projected privacy, and calls us to a sacrifice of our inclination and to a renunciation of our own will.

Let us cheerfully bear and diligently receive these smaller trials which God prepares for us. Submission . . .
  to a cross which He inflicts,
  to a disappointment which He sends,
  to a contradiction of our self love which He appoints,
is a far better exercise than great penances of our own choosing.

Perpetual conquests over impatience, ill temper and self will, indicate a better spirit than any self imposed mortifications.

By these incessant tests of our temper, God cultivates the more difficult virtues of . . .
  humility,
  submission,
  and patience.