Never heard of Constant Payne - google tells me it was a pilot for a show, twenty years ago. So: don't worry, no one will be able to spot similarities to a show that wasn't made.
The fact that it wasn't made however should make you wonder why it wasn't made.
also: why would you die from cancer fighting robots? - cancer fighting robots sound like a good thing, no?
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I can read facial expressions. I did the test.