'Supernatural': Should Sam and Dean fear Bobby's ghost?

In last week's episode of "Supernatural," Bobby (Jim Beaver) was having some trouble making contact with Sam (Jared Padalecki) and Dean (Jensen Ackles), after a fight with a Leviathan drained his ghostly energy. In this week's upcoming episode, though, Bobby's got some of his strength back and he's able to appear to Dean long enough to discuss their upcoming Leviathan showdown.

As Bobby outlines their strategy for killing Dick Roman, Dean appears increasingly uneasy. It doesn't help that the weapon requires blood from the king of Hell, Crowley, as well as blood from an Alpha monster and the bone of a human "as light and good as the Leviathan are hungry and dark." That's some pretty shady stuff.

Add to that the fact that Bobby seems unable to control his surges of emotion, and we'd say that Dean is right to be a little uncomfortable with their current situation. But could Bobby become dangerous to the Winchesters?

We've seen good people turn into angry spirits before on this show, and given Bobby's weighty emotional baggage and the violent nature of his death, it seems that there's a good chance he's headed in that direction. Weigh in below in our comments section!