They must secrete some chemical that stops blood from clotting naturally.

Secrete...?!

Another theory is that Fiends become intoxicated by the endorphins in their brain, and simply cannot stop their slaughter.

You're making my brain put out too much noradrenaline.

though that actually just stings a little.

Maybe one that secretes scummy slime, or one with repulsive tentacles?

That's right. What you see clinging to every inch of me are the fluids secreted from a toad's stomach.

His blood type is non-secretory.

It was non-secretory saliva as you suspected.

According to the test results, it was non-secretor saliva.

As many as one-third of the population have non-secretory saliva.

the results showed that the person's saliva was non-secretory. That's it.

An excretion from the hind end of a type of spotted weasel. Very expensive.

Fried endrega glands! Dog's nipples! Get them while their hot! Spiraled pig's ears! Wren's tongues! On sale now! Come and get them!