You know you're obsessed with LOTR when ...

[Lotrelf]

You consider going to the supermarket as a quest.

Yes! I do. Going to the market or Supermarket is no less than a quest to me.

You believe that your brother or sister is some stange creature that was created in the fires of Mount Doom!

Yup! Keep mentioning them as "nasty, little Orces!"

You suddenly decide you have a craving for mushrooms.

I LOVE MUSHROOMS. So yes, even I think at times I can go to a shop and steal them.

You see a flock of crows, and run for cover!

I did something like that after I saw the movie.

Mine are:
1). Whenever you meet a new person who loves and reads the books, and you ask, "Have you read LOTR?"
2). Keep talking in Gollum's style.
3). Keep repeating Gandalf's words "don't tempt me, Frodo!"
4). Taking many things in life in LotR's context.
5). Idealizing LotR characters for life.
6). Despite not liking the films too much watching them again and again because they are THE LORD OF THE RINGS.
7). Going for fight with anyone who insults the books.
8). Being able to talk about the books for hours and hours without getting tired.
9). Keep reciting the poems and songs of LOTR.
10). LotR's Middle-Earth being another Home and loving to visit there despite wars and darkness.
They're not funny, but for now this is what I can think of.