This is where they live, [ Strange explains, as he looks over at the Haunter with a slightly affectionate smile. Yeah, they became FAST friends. ]

Grant and some of the other ghosts live her, I think because they don't like the sun all that much. Other trainers have kept on barging into the warehouse for some reason, so of course the ghosts are going to try and scare them off.

[ The ghosts and, by extension, Strange. Look, if someone randomly came walking into your house, you'd try to send them away as well. ]