Or they just found the idea of Darren and Derren on stage at the same time to be too disturbing...

[BM] All sounds a bit quantum, to me.
What you're trying to do is draw definite lines along fuzzy boundaries, which looks OK from a distance but when you look closely, well, aren't.

[Darren] "Only a game"? You won't win anything with an attitude like that, my lad!

We had the same argument over SARS when that was a subject -- was it an animal, vegetable, or mineral? A virus is a non-cellular collection of ribonucleic acids which merely attaches to an unlucky living cell and sort-of-passively uses the cell's contents to propagate itself.

I'd claim it's a mineral, but others would have a valid argument otherwise.

And what about mushrooms?

Fungi in general would be considered vegetable.

So do we hope he snuffs it or what? (Refusing to get into highly confusing conversation about anything below sub-atomic level)

Dr Q] How would you class Harry Potter?