This "ice bucket dumping" is some sort of Satanic "chrismation" that's marking the masses (as it's now gone mainstream) for a ritual blood sacrifice or other culling. It's an occultic mockery or symbolism that's enjoyed and understood by the Satanic Bankersteins, while the unknowing sheep participate in their own self-mockery. How does something so trivial, insignificant and, arguably, juvenile spread like wildfire among the masses? How do these things get catapulted into the mainstream? The answer is it's promoted and pushed onto the masses by the Jєω-owned media and pop-culture, then the sheep willingly jump on the bandwagon because it's the "fun new thing to do", but they don't realize they are participating in their own ritual mockery of something more dreadful that will befall them in the future.
Ascent makes some very good observations here.
Anything that is wildly, faddishly popular in the secular world (called, very appropriately, "viral") is to be held in suspicion by Catholics for that very reason. And if the now openly Satanic activities of pop whores like Miley Cyrus, Katy Perry and Lady Gaga have taught us anything, it's that the Devil and his minions excel at selling diabolism to the masses under the guise of seemingly innocuous mindless "fun."
It has been reported that, within the pornography industry, Satanic ceremonies are frequently performed before filming commences, "consecrating" the production to Satan, and offering to him the souls of those who watch the final product. This "ice bucket" idiocy looks an awful lot like a mocking imitation of Baptism by affusion. Based on its nearly supernaturally rapid "viral" popularity, and its widespread promotion by the most public faces of the ѕуηαgσgυє of Satan, is it so unreasonable to assume that there has been a similar secret ritual "consecrating" this ritual - and those who practice it - to the Devil? Add to the mix the fact that, behind this ritual is a fundraising effort for veiled infant murder, and I think the demonic nature of the "challenge" becomes all but impossible to deny.
As always, if it's something most of the world is doing, that alone makes the best argument for Catholics not to do it.