“Ah yes, the summer of 2014, I remember it well,” you’ll tell your robot grandchildren. “The world lost Elaine Stritch…Robin Williams—tragic! And everyone was dumping buckets of ice water over their heads.” The latest celebrity to take the ALS Ice Bucket Challenge—the DIY dunk-tank-for-charity viral sensation that involves chilly water, a video camera, and the magic of social media—is Ai Weiwei. No word as to whether the Chinese artist made a donation, but he definitely got soaked. Two buckets were required. Watch the scene unfold in the courtyard of his Beijing HQ, much to the delight of onlooking studio assistants.