...if that is the case, you've got to lay off until you're at least in your own apartment or somesuch...

unless you happen to live in a place like Holland or certain parts of BC where it's just about legal, and penalties have decreased markedly... or if you happen to be that lucky child of an 'underground farmer', and mommy or daddy has a 200 plant show in the basement... hmmm...

It would still be better if you did it in your own place..! And you have a duty not to imperil your parent's [and your OWN!] home in any case (it's in YOUR best interest, trust me!)...