What's the significance of the fly in breaking bad?

Related questions

1. How did Jane die Breaking Bad?
2. Is there a cure for ricin?
3. What does a purple sky symbolize?
4. What is the significance of the eyeball in breaking bad?
5. How did Gus know about the ricin?
6. What does the fly in breaking bad represent?
7. Did Walt kill Mike on Breaking Bad?
8. Why does Walter White cut the crust off?
9. Does Walter die in breaking bad?
10. Why is purple Marie Breaking Bad?

Tags

1. #appeared
2. #white
3. #irrational
4. #flies
5. #guilt
6. #obsession
7. #breaking
8. #represents
9. #control
10. #embarks
11. #quest
12. #common
13. #walter
14. #superlab
15. #obsessive
16. #insect
17. #destroy
18. #speculated
19. #contamination