43. Not reading every single list about 'Lost.'

It's been 10 years since "Lost" went off the air, and if you're a hardcore fan, there hasn't been a day where you still have not thought constantly about the island. Like, constantly. Get it? Constant?

And it isn't just about all the mysteries, either: it's that a decade on, there are things big, and small that will drive you crazier than Libby off her meds if you just let the non-hardcores get to you.

Here are 42 things you can do or say that will still drive any "Lost" fan insane:

42. Posting the number 4, 8, 15, 16, 23, or 42 anywhere.

41. "It was too complicated."

40. Not remembering every single detail of the continuity. It's only been 10 years, get with the program.

39. Slipping references to "Lost" in shows that are not "Lost."

38. "Did they ever explain the Smoke Monster?"

37. "What was up with that Hurleybird?"

36. "Oh, so they were just there to protect some sort of Laser-cave?"

35. "They never explained those two dead bodies from season one."

34. Using a close-up shot of an eyeball in your movie/TV show. TOTAL RIP-OFF.

33. Getting Jack's tattoos IRL.

32. Booking them on an airline flight 815, as if that's supposed to somehow be okay.

31. "If Hurley was on the Island so long, why didn't he lose any weight?"

30. "It was just a 'Gilligan's Island' rip-off."

31. Generally not recognizing "Lost" was brilliant, original, and changed the way television was made forever, without any qualifications.

28. Spoilers. Even 10 years later.

27. Attacking J.J. Abrams when clearly it was all Damon Lindelof's fault.

26. Attacking Damon Lindelof.

25. "I'm not really a 'Lost' fan."

24. Actually listening to a Driveshaft song on purpose. Even Losties know Driveshaft sucks.

23. Insisting 42 refers to Jackie Robinson, not a number played on the fictional lottery by Hurley.

22. "I just liked 'FlashForward' better."

21. Shipping Boone and Shannon. Ew.

20. Placing "The Constant" anything lower than #1 on your list ranking every episode of "Lost."

19. Insisting that Desmond isn't your favorite character, like there's an option.

18. Calling it, "that show with the guy from 'Party of Five.' "

17. Saying the fan group name is "Losters" or "Lost-ites," instead of "Losties."

16. Pointing out that, "the numbers add up to 108, and there's also a lot of 108's on the show?" as if we don't have notebooks full of nothing but the numbers.

15. Playing the numbers in the lottery IRL, as a "joke."

14. "I stopped watching after Season 2."

13. "I stopped watching after Season 3."

12. "I stopped watching after Season 4."

11. "I stopped watching after Season 1."

10. "I stopped watching after Season 5."

9. "I stopped watching one episode before the end."

8. "Hey, what are the numbers from 'Lost' again?"

7. Talking during an episode.

6. Leaving the lights on while watching an episode.

5. Getting up or moving even a little bit while watching an episode.

ABC

4.Seriously, any combination of the numbers seen in public. One way ticket to crazy-town.

3. "Who was in the outrigger?"

2. "You know, Nikki & Paolo weren't that bad."

1."They were just dead the whole time, right?"

What's your number one "Lost" pet peeve? Let us know in the comments below!