Why is the joker crazy?

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Tags

1. #colors
2. #interpretation
3. #chemicals
4. #disguised
5. #drives
6. #which
7. #criminal
8. #insane
9. #common
10. #since
11. #character
12. #batman
13. #pursued
14. #joker
15. #revisions
16. #bleaches
17. #undergone
18. #falls
19. #green
20. #debut