You can also use HaxChi as a "forwarder". You have to be in CFW already but you can set the default= option in the config file to point to any elf and even use a non legit DS title. Just don't get it confused with your "real" HaxChi.
I have several "non-legit" HaxChi installs. Since I have CBHC autobooting to CFW it's no big deal. Download any HaxChi compatable DS game with Wii USB Helper then "HaxChi it" to point to any elf you want
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