I didn’t explain what had happened. Instead, I made Grandma some tea, settled her comfortably into her chair, and told her not to worry about the bill.

Then I left, but I didn’t go home.

I drove back to my office, scanned the itemized receipt, enlarged it until it was nearly three feet tall, and printed it on the office plotter. I wanted every lobster tail, cocktail, dessert, and dollar amount large enough to be impossible to overlook.