While filming a scene for Star Trek into Darkness, actor Zachary Quinto sustained a burn.
The scene in question was the one in which Spock was trying to stop a volcano from erupting and wiping out a civilization.
Part of Quinto’s skin was exposed in spite of wearing a protective heat shoot for the scene. “My neck skin got caught in between the helmet (and my shoulder),” he said. “I didn’t know how serious [the burn] was. I didn’t know what was happening.”
J.J. Abrams told Quinto that “It looked like there was a caterpillar on your neck!”
Source: Starpulse
