No stupid questions is part of the freconomics radio network. Next week, we want to hear your own washroom stories. Tell us about the best and the worst public rest rooms that you've visited. All our shows are produced by stitcher and renbud radio.
How does the profitability of family firms stack up against the rest? Has nepotism become more taboo over time? And why are 90 percent of adoptees in Japan not children but adults?