Come again? Snape's a Quidditch Fan?

[Amanda]

No: HPFGUIDX 88509

Look at this, an entire post from the L.O.O.N.iest of the supporters 
of a theory I totally don't support, and I'm picking on a side note. 
I must be slipping.

Pippin:

> Why has she taken such care not to show us Snape in the 
> sunlight, except for one occasion when he was in obvious 
> discomfort? Snape's an enthusiastic Quidditch fan, so why 
> should he be wearing a "very grim smile" when his team is 
> going for the Final?

Okay, I want canon for "Snape's an enthusiastic Quidditch fan." This 
is stated with such certainty--where'd it come from? I think he 
enjoys the House rivalries, but my take has been that Quidditch is 
just one of the vehicles through which Slytherin should make its way 
to the top--rather than any liking of the sport for itself.

~Amanda

P.S. -- He is not a vampire. Neener, neener.