Democratic presidential front-runner Howard Dean blew his stack at an Iowa voter on Sunday who had asked him to end his "slam, bam and bash" rhetoric attacking President Bush. "Please tone down the garbage, the mean-mouthing of tearing down your neighbor and being so pompous," said Dale Ungerer during a question-and-answer session initiated by Dean after he had delivered his standard stump speech at the Oelwein Community Centre on Sunday. Dean's response was calm at first, telling Ungerer, "George Bush is not my neighbor." But when the Iowa Republican stood and tried to interrupt, Dean shouted: "You sit down. You...