The Dirtbags who work the Sunday night shift are ordinarily brazen and aggressive, but they are quite timid tonight, presumably because the pigeons they would prey on are unwilling to venture forth following Friday’s exhilarating cascade. If DaBoyz are able to hoist the S&Ps no more than 5-10 points overnight, take it as a sign that that’s as much of a rally as they can coax from a handful of witless buyers.