A dinner lady was a Krillitane who had taken human form and worked at Deffry Vale High School. She fed the children chips cooked in Krillitane oil so they would become smart enough to solve the Skasis Paradigm. She was killed when K9 Mark III heated up the drums of Krillitane oil in the kitchen and blew up the dinner lady, the other Krillitanes, the school and himself. (TV: School Reunion)
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