That makes sense, but it's still a bit of a disappointment. As to why they didn't release Disaster over here, I have no clue (other than the whole 'it didn't do great in PAL territories thing that they said was the reason'), because it would've probably done a decent job here.
Then again, look how well Dead Space: Extraction did....
While I know you mean in case of someone confusing schooling establishment from shooting establishment (many of the same letters) I am still going to read that as lockdown (also known as lock in) for a pub
being drunk in school was either because drunk on playing field or could not be arsed with one particular Thursday afternoon so went and had some beers and played some games instead before returning for an ill advised last lesson/period