tromino
See, I am a time traveler. The limits of time travel cause me to sometimes stray too far into the time-space continuum. The distortion of time causes me to sometimes dematerialize, thus putting me into a state of cessation of metabolic function. There is only one way to fix this problem – a kill switch on the back of my time traveling apparatus. With this, my sudden death is no longer permanent but instead a temporary state of existence.