Hey, remember how Kansas City agreed to spend $425 million on stadium renovations a few years back in exchange for the Royals and Chiefs agreeing to stay in town for another 25 years? Looks like somebody should have read the fine print: Thanks to a tussle between the city and state over who’ll pay $4 million a year in ongoing upkeep and improvement costs to Kauffman Stadium and Arrowhead Stadium, the city nearly defaulted on its lease last year, to the point where Royals management had drafted a letter declaring the city in default. If that happened, the teams could leave before the 25 years were up, effectively making the entire $425 million expense worthless — except inasmuch as having nicer digs would give them less reason to want to leave. Still, it’s a worthwhile reminder that leases are only as good as their fine print — something K.C. could have learned just by looking across the state.