To whom it may concern: I am writing to thank you for bouncing my check with which I endeavored to pay my plumber last month. By my calculations, three nanoseconds must have elapsed between his depositing the check and the arrival in my account of the funds needed to honor it. I refer, of course, to the automatic monthly transfer of funds from my modest savings account, an arrangement which, I admit, has been in place for only thirty-one years. You are to be commended for seizing that brief window of opportunity, and also for debiting my account $30 by...