Here's a riddle for you: What do you call a horseshoer that doesn't shoe any horses? An employee of the Detroit Water and Sewerage Department. No, you're not supposed to laugh, but the perpetually cash-strapped city somehow still employs a horseshoer, even though the department does not own horses, nor does the former employee of the Police Department work with any of the city's four-legged equines. The horseshoer's position was revealed as part of an independent report that concluded that the DWSD could "trim more than 80% of its workforce," a suggestion that union leaders say isn't possible. In case...