I heard that. If you throw something unprovoked at a grown man, much less a 200 lb athlete I think it's safe to assume you might get an ass-beating.
Those of you that think you can toss objects at grown men and not expect some kind of retaliation are hilarious.
And those of you who think you can attack a person (and instigate a near riot) because someone tosses a cup at you without suffering the ramifications of the law, both criminal and civil, are ignorant.
I think you've hit upon a keyword there, "grown man." In my world a "grown man" is responsible enough not to endanger children, old ladies and innocents in a meaningless and thoughtless retaliation over a plastic cup.
Those of you who think Artest acted like a "grown man" are hilarious.