The most scariest enemy

[Xss]

Spoiler below!

The wine cellar, indeed. The thing is I was feeling safe since all of that part was in the demo, and I thought monsters would only start really attacking on the second area (in the storage). And since I was recording all of it as a "let's play", I was also making fun on the commentary for the sake of it. Ie, in the study room the grunt that you see is a scripted event: if you follow him (aka me screaming "you there, gentlement! Please stop and help me to get out of here" ) nothing happens, the monster simply vanishes of the level. I thought the same would happen in the wine cellar, so I started running after the monster...Only to discover he wasn't disappearing. Then he turned around, with the freaking music starting, and oh boy, I knew I did something wrong! Everything is recorded, and will be on youtube within a couple of weeks.
Nonetheless it also completely ruined the surprise of discovering the real appearance of the grunts much much much later in the game.