SCP Foundation

In breif, the "Black Cat of Bahomet/The Black Cat of the Lamb of God" is a microscopic feline, that forces any person that knows much of religion or is religious to argue whenever it is Bahomet or the Lamb of God. The two affected argue until neither can breathe, killing them both. The Black Cat seems unaffected, and possibly doesn't even notice what it's doing.

I do need a bit of help with containment and such, but additions to the idea are welcome.

a microscopic feline

Why microscopic?

Bahomet

Note that this started as a politicized demonization of Islam during the Crusades, and is a corruption of "Mohammed".

The two affected argue until neither can breathe, killing them both.

Compulsions and lethal effects are perceived as overused by many readers, and together they require a very solid execution to succeed nowadays.

The Black Cat seems unaffected, and possibly doesn't even notice what it's doing.

This image is good, but hard to relate to if the cat is microscopic, and isn't really enough to carry the article by itself.

If this is a metaphor for the irrelevance of religious fervor and the irony of the vitriolic nature of theology in the face of an indifferent cosmos, then I would take a step back and try to figure out how to develop this idea more. Why not have the cat induce more complex religious expression, debate, and schisms (and then of course wander off in a feline way)?