Snape can't see blood!

[Florentine Maier]

No: HPFGUIDX 58747

I've noticed something very peculiar:
Non of the potions prepared in potions class ever seems to contain
BLOOD as an ingredient.

My first thought was that students don't learn potions that contain
blood, because they are black magic. - But that can't be the case that
generally, because Dumbledore himself is known for the discovery of
the various applications of dragon blood.

So my second explanation goes into the dhampire-direction again.
:-))
Snape has a distorted relationship towards blood, because his father
was a vampire! Just like someone who's father was an alcoholic, and
who would never let a drop of alcohol pass his threshold.
I'd love to hear your theories about the conspicuous absence of blood
in potions lessons!

Yours,
Florentine