Red Dwarf, Series VI

Rimmer:
There, on the floor... P-S-I-R-E-N-S... "Psirens?"

Kryten:
The poor sucker must have written it using a combination of his own blood, and even his own intestines.

Rimmer:
But who would do that?

Lister:
Someone who BADLY needed a pen.

Cat:
What I wanna know is why he went to the trouble of using his own kidney as a full-stop.

Rimmer:
I don't think he meant to do that. I think it just... plopped out.