Why does Walter White cut the crust off?

Related questions

1. Did Walt kill Mike on Breaking Bad?
2. Why is purple Marie Breaking Bad?
3. How did Jane die Breaking Bad?
4. Did Tuco die in breaking bad?
5. Does Hank die on Breaking Bad?
6. Why was the show called Breaking Bad?
7. What is the significance of the eyeball in breaking bad?
8. Why did they stop breaking bad?
9. What does the fly in breaking bad represent?
10. Who plays the sister in law on Breaking Bad?

Tags

1. #krazy
2. #lunch
3. #separates
4. #working
5. #gustavo
6. #onward
7. #shown
8. #bread
9. #again
10. #crust
11. #skyler
12. #tearing
13. #later
14. #before
15. #white
16. #making
17. #giving
18. #sandwiches
19. #series
20. #walter
21. #cutting
22. #while
23. #himself