Lex only took it 5 years to realized that he...

[muffinpeddler]

well, how many people can brag that a suspected murderer, a pheremone excreting woman, 2 Kryptonians, a portal to the Phantom Zone, intangible kryptonite tattooed thugs, an invisible boy, a vampire, an alien metamorphic intelligence (Brainiac), a witch, an FBI agent, a lost half-brother, a super-speeding thief, your evil other half, and a crazed super stalker have all been in their study?

[UpandAtom]

After all the psychos that walked into his house, Lex thinks that he could use better security. For a rich guy, you think he'd be able to afford some common sense.

[Micheal Moon]

Hahaha this is hilarious I never thought about that. Aside from the deranged girl who shaved her head, how many times have we heard,"LEX!!" with Clark strolling in and saying,"What do you know about...........""(Lana/Chloe/ could die because of this!!"