New Penumbra Black Plague Teaser!

[GFree]

Dunno, maybe the sight of light just stuns them for a moment, then their eyes re-adjust to it. I'm sure Frictional will make them scary and threatening enough.

I rather like this idea actually. Since the developers prefer to have the player avoid combat than engage in it, it would make sense to provide the player with the ability to get out of a nasty situation without fighting. So, like your idea suggests, maybe the player can bring out their flashlight for a moment if caught off guard, blind the enemy and run away, but can't try the same trick quite on the same enemy since they're be used to it by then.