1. When you try to find a volcano with a bucket of water to get obsidian.
2. When you're afraid of punching something because you think it will break.
3. when you see a wolf, you say "Mom, do you have any bones?".
4. When you need something you don't have, you search desperately to find INVedit.
5. When you see mossy stone, you think it's a dungeon.
6. When you hear grunts, you think you're standing above a cave.
7. When you see a bad landscape, you ask yourself "Why did I choose this seed?".
8. When you think you have an inventory.
9. When you kill something, you expect it to drop something.
10. When you're not afraid of heights because you think everything floats, except sand.
11. When you think The Nether exists (inside Mars, anybody?).
12. When you feel your pet and say "Notch must have made a new mob!".
So one night I was playing SMP, and got up to go to my kitchen to get a drink. My mind was still in MC mode, though, and I immediately panicked when I walked into the kitchen because the lights were off, WHERE ARE THE TORCHES, OH GOD
When you move your bed at least 1 meter away from any walls in your house.
When you expect people to shout "Ow!" when they injure themselves.
When you try to craft a pickaxe(or any minecraft tool for that matter) using diamonds.
When you try to stack dirt high up into the sky and expect it to not topple over
sorry everyone.. i wont be adding more things to the list. not that these other responses are bad. some of them are realy funny! its just i have a lot of things to do.. feel free to continue posting! and if anyone wants to copy this stuff up and make a whole new thread.. go right ahead!