scientists in the 1990s, putting a Get More Purple gene attached to a harmless plant virus into an already purple petunia: please get more purple
the petunia, sensing an apparent honest to god Get More Purple Disease, using the previously undiscovered RNAi antiviral ability to shut down all other purple genes along with it just in case: you put VIRUS in petunia? you infect her with the More Purple?? oh! oh! her children shall bloom white! jail for mother, jail for mother for One Thousand Years!!!!