Charlie Sheen did the "Ice Bucket Challenge" for ALS yesterday, and as you'd expect, he didn't do it like anybody else.

Instead, Charlie held a big pan over his head . . . and when he flipped it over, $10,000 in cash rained down on him.  But he wasn't just being a jerk to mock the whole thing . . . he's actually donating all of it.

He explained, quote, "Because, let's face it, ice is going to melt, but this money is going to actually help people."

Also getting in on the trend over the weekend was Houston Mayor Annise Parker. She then called out Jadeveon Clowney of the Texans, Bo Porter of the Astros and Scott McClelland from HEB.