When Patti Smith, the queen of cool, tells you to "just be cool," you'd better stop and check yourself. Watch her do just that in this Live at Rockpalast German TV footage from 1979. At around the 3:45 mark, she pauses her performance of "Dancing Barefoot" to break up a ruckus in the crowd.
"Now, c'mon. Just be cool, man. Hey everybody, just be cool. Get cool... Stop acting like assholes and settle the fuck down!"