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I did not know the F-100 carried sidewinders
F-100 was originally to be an air superiority fighter. It was the mount of USAF's "Clobber College", Fighter Weapons School at Nellis (predecessor to USN's Top Gun and retroactively, Red Flag) in the 1950s.
F-100 / Sidewinder also scored the only air-to-air kill against a B-52!

Over New Mexico, some Huns were practicing intercepting bombers. Joining up for the flight home, Murphy's Law joined up, too. An AIM-9 suddenly lit off and homed straight and true into the BUFF's engine pod. IIRC, all ejected safely.
Investigation showed the Hun pilot had all switches in proper safe mode. Of all things, it was determined that moisture caused a short that activated and triggered the missile.