Mailsi might one day go dark side... There's a very real possibility. 

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..
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Wait! I just figured out the reason for the school. To keep an eye on those students who might one day become villains. Haha.

EDIT:
On another note. Here's Clark pushing Lois out a window. (Because it was there)
[img]http://i396.photobucket.com/albums/pp44/countervector/giant77-7.png[/img]