Matt Damon is the latest celeb to dump a bucket of water over his head for the ALS Ice Bucket Challenge, but he put his own "swirl" on it.
Damon says it would have been wasteful to use fresh water for the challenge, especially because he is one of the founders of water.org, which raises clean water awareness and sends drinkable water to people around the world.
Read more: The ALS Ice Bucket Challenge, celeb style!
The actor points out that while dumping water from the toilet on your head may look gross, “the water in our toilets in the West is actually cleaner than most people in the developing world have access to.”
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