"The kid starts cackling, and I realise he invented his own question in order to trick me into saying it," the teacher wrote.
The New York Times' latest game, Pips, brings domino fun to your desktop. How to play Pips as well as hints in case you get stuck.
Looking for help with today's New York Times Pips? We'll walk you through today's puzzle and help you match dominoes to tiles ...
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