Over the weekend, Tim Cook was the keynote speaker at the George Washington University graduation. In typical fashion, the bulk of Cook’s speech focused on broad and important themes such as equality, social change, civil rights, and correcting injustices where and whenever it arises.

“Sidelines are not where you want to live your life, Cook said. “The world needs you in the arena. There are problems that need to be solved. Injustices that need to be ended. People that are still being persecuted.”

But before Cook got into the meat and potatoes of an otherwise inspiring speech, he couldn’t help but have a little but of fun at the expense of anyone in the crowd who just so happened to be carrying a non-iPhone smartphone, which in this day and age pretty much means Android and Windows Phones (sorry BlackBerry).

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“Before I begin today,” Cook began, “they asked me to make a standard announcement about silencing your phones. Those of you with an iPhone, just place it in silent mode. If you don’t have an iPhone, please pass it to the center aisle,” Cook continued, “Apple has a world-class recycling program.”

Here’s a short clip with the zinger above:

And here’s a video that shows Cook’s full speech:

A life long Mac user and Apple enthusiast, Yoni Heisler has been writing about Apple and the tech industry at large for over 6 years. His writing has appeared in Edible Apple, Network World, MacLife, Macworld UK, and most recently, TUAW. When not writing about and analyzing the latest happenings with Apple, Yoni enjoys catching Improv shows in Chicago, playing soccer, and cultivating new TV show addictions, the most recent examples being The Walking Dead and Broad City.