When he sees the dummy, he jumps a bit with a small "Ah!" from being startled. That thing would spook anyone upon suddenly seeing them in the dark, but coupled with the dark veiled figure reminding him of the Darkness avatar Barbara Jagger?

He has zero chill, and he may never be chill again.

"I'll teach you some manners," Alan says, trying to be intimidating but he is a paranoid man with a flashlight, pointing a flashlight at a ventriloquist dummy floating around him. So... Not very intimidating at all.