BTW, a very Keillor theme, edited out of current reality: http://en.wikipedia.org/w/index.php?title=Fixed_income_arbitrage&oldid=70499482

"The practice of fixed-income arbitrage in general has been compared to that of running in front of a steam roller to pick up nickels lying on the street [...]"

Just say it: picking up nickels in front of a steamroller.