"Of course I can't hurt you," the ghost says, sounding horrified.

Then he looks horrified.

"Oh no. No. I mean. I don't want to hurt you. I simply need for you to turn around and -- "

He sighs, long and tired and a little miserable.

"Oh, bother."

The air begins to glow with eldritch blue fire.

"Halt!"

Hopefully no one is planning on going anywhere anytime soon. But at least they can still breathe!

And blink!

And speak.

The ghostly watchman is not unreasonable.