Remember that childhood rhyme? “Every party needs a pooper, that’s why we invited you—party pooper, party pooper!” I certainly don’t want to rain on Wall Street’s parade and become the party pooper nobody wants. But in the midst of the hoopla over the Dow Jones industrial average’s new all-time high on Tuesday (14,253.77), could it be a bit premature to be singing, “Happy days are here again!”?