Here is a cool thought experiment I haven't given any thought yet- Take a beaker and fill it with an appropriate solvent. The solvent is meant to solvate a ferromagnetic specie (any will do, as long as they do not cluster together). Now drop a magnet into this beaker. Do the magnetic particles cluster around the magnet? Doesn't this lead to a decrease in entropy of the beaker? Clearly, if entropy decreases the reaction can't be spontaneous, so the particles will not actually cluster around the magnet. This is Law.