Mad scientist making human-monkey embryos.
(www.the-sun.com)https://www.the-sun.com/lifestyle/tech/2713352/first-human-monkey-embryo-created/"These embryos were destroyed at 20 days of development but it is only a matter of time before human-nonhuman chimeras are successfully developed, perhaps as a source of organs for humans."
Spare parts? Ok. Destroyed at 20 days? Yeah. How many full grown hybrids are running around in some basement lab?