LOS ANGELES (MarketWatch) -- We've all heard of road rage, but plane rage? If you've ever tried to figure out an IRS notice or clear up a problem with your tax bill, you may understand Joseph Stack's sense of helpless frustration. However, if you read his final letter, you will not understand what his tax problem really was or how IRS was at fault. A close reading of his sad rant seems to show that his most recent problem was caused by his accountant, who omitted $12,700 of Stack's wife's income, causing an audit. Perhaps that office building housed both...