Why does the narrator throw the white umbrella into a sewer at the end of the white umbrella?

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Tags

1. #throws
2. #regrets
3. #sewer
4. #because
5. #white
6. #umbrella
7. #secretly
8. #being
9. #cause
10. #mother
11. #hiding
12. #narrator
13. #realizes
14. #represent
15. #about
16. #crosman
17. #guilt
18. #after
19. #accident