It’s enough to make any Wisconsin taxpayer sick. For 40 years, state legislators have enjoyed a special benefit that not only grants them sick leave but also allows them to bank all unused sick days and use the cash value of those days to pay for health insurance after they retire from the Legislature. “It’s a health-care golden parachute for legislators,” said State Rep. David Steffen, R-Green Bay. Because lawmakers aren’t required to call in sick when they miss a day in the Capitol, few ever use any of their sick leave. The unused days pile up over the years,...