11 ways for a Harry Potter fan

To Annoy a Twilight fan

Guaranteed to start a shouting match of fantastic proportions...

Steal their Twilight books and replace them with your Harry Potter book in the Twilight dust covers.

Tell them that Edward is a 'Hand-me-down' because Twilight only got him after Harry Potter had finished with him.

List other 'Hand-me-downs' from the books like the last names Black and Clearwater.

State that you think Edward would be hotter if he had a lightning scar on his forehead.

'Accidently' call Edward, Sanguini.

Explain in detail how any wizard can possess all the gifts (seeing the future, reading mind etc.) that a vampire would only have one of.

Whenever they mention Jacob Black, innocently ask if they mean Stubby Boardman.

Say that Bella and Filch would make a good couple.

Flinch whenever they say 'Edward' and ask them to say 'You-know-who'.

Whenever they describe the vampires of the Twilight series (Sparkly skin, no fangs etc.), contradict them, and tell them what 'real' vampires, out of Harry Potter, are like.

Explain how Twilight werewolves are really Animagi and ask whether they have been registered at the Ministry.