He was employing an advanced business strategy called, 'Hoping nobody notices.'
Not PD, but this reminds me of a story on the Ehell website a few years ago. The person telling the story, "Jane", said that she was organizing a wedding shower for her co-worker friend "Mary". One of Mary's other friends, "Sue", begged Jane to let her help with the shower. Jane hesitated, because Sue was known to be a bit flakey. She finally relented and told Sue that she could mail out the shower invitations.
On the day of the shower, everything was ready. The decorations were up and looked beautiful, the food was prepared and looked delicious, the guest of honour was due to arrive any minute. Just one problem - there were no guests.
Jane kept looking at the clock, getting more and more concerned, and she finally said "Um, Sue, you did
mail out the invitations, didn't you?" Sue promptly burst into tears and, sobbing, confessed that she'd forgotten all about them. She'd remembered that morning, when it was much too late to mail them. Jane's response was "... and you were going to tell me this WHEN, exactly?" Sue apparently hoped that Jane and Mary wouldn't notice that no-one had come to the shower!