Thought Experiment
P1: Imagine there is pollen that is entering your place, that will sprout into a plant person
P2: Imagine you buy the most protective mesh to protect your house against pollen
P3: A plant person still enters through your window and sprouts a person
P4: It is permissible to remove that plant person if it enters your house unwillingly
C: It is permissible to remove the plant person