Just because something is a metaphor doesn't mean it can't be real.
Madness string 122
The dye. I put it on my hair and the results were immediate. It changed colour, darkened, reddened. And when I washed it out, it flowed over my body like blood, the colour of blood, the smell... blood... everywhere, blood. So much blood.
This is like saying you don't want your child eating their baked birthday cake because raw eggs were used to make it and you don't want your child getting salmonella from it.