I just started the Game and The first area you Go too Where 173 Snaps 2 guys necks, That happened and i was coming Outta the room where you get the Gasmask And instead of staying in the room/Opening the door, SCP-173 Climbed over the Glass Wall in betwwen the First openable door

That has happened to me before, except I had just grabbed my gas mask. It scared me shitless, and pissed me off because I hadn't saved.

That has also happened to me once.
Just keep looking at the window and move to the door.

That's why i always look to the door/glass and try to get the Gas mask as fast as possible.