Yes and no.

[Dean shrugs, moves over to the wall to study the blinds covering a sight he'd rather not see, so he doesn't try to look past them.]

Zombies ain't the only over-achieving dead thing lurching around. There's ghosts of all kinds, werewolves, vampires, black dogs, demons, rakshasas, shtrigas, wendigos...

[He cuts off with a dismissive hand gesture. All of this is old news to him, by the way he's talking.]

You get the point.