meme part 2: Curse of the Crossover Crack

Remember this meme?
It seems when I should write something I don't get it done, and when there's no need...well, inspiration strikes.
So, sometimes my aswer is an explanation, sometimes it's a ficlet and sometimes both :P
I...um, had a hard time deciding on characters so in the end I just chose quickly and haphazardly >_>;
1. Roronoa Zoro
2. Dr.Nii
3. Cho Hakkai
4. Eiri Yuki
5. Muraki Kazutaka
6. Rock Lee
7. Kyo Aizawa
8. Sha Gojyo
9. Niko Robin
10. Genjyo Sanzo
11. Kyon
12. Death (the one from Discworld)
13. Shuichi Shindou
14. Haruhi Suzumiya
15. Son Goku
( On to the crack )