If you’re of a certain age, you were probably strongly influenced to become a firefighter-paramedic by a couple of guys named Johnny and Roy, the two heroes of the 1970’s TV show “Emergency!” They played a couple of the country’s first firefighter-paramedics. The characters on that show were good role models. Our guest says we could use some of their attitude these days. Mike Rubin’s a paramedic in Nashville, Tennessee.