Curious why the need for stealth in your own home, but there is a CanCom rule covering this practice...

Messageboard Rules
"-Growing in the home of someone who is not aware of your growing activities. This includes parents or housemates who are on your lease. Dormitory growing is also covered under this rule."

Main reasoning behoind this rule, is that other's in your home have the right to know what potential felonies are being comitted in the home. Would be a bummer to have the parents or roommates home taken-away for your drug offenses. (if applicable, but this site does assume you are legal) Same with room mates.
I know I'd likely be fairly vindictive were I to lose my home or freedom, for your indiscretions. For that matter, I'd be REALLY pissed if you were to jury-rig a set-up that caught my home on fire.