Because 7 8 9.
Because he can't see through the wall.
Eric Clapton would never let a bag of cocaine fall out a window.
9 out of 10 zombies said "braaaaiiiiinnnnssss" number 10 ate the researcher.
Instead of all this "how did you get in to my house " calling 9-11 business.
One. This one. The rest are all true.
Nothing because ghosts don't exist. Edit:Holy crap I just realized I didn't post this on /r/antijokes.
Because 7 8 9 A