So basically no different from all the skanky male street deters who keep their stash next to their sweaty unwashed bollocks..
It's another reason for home growing,you never know were veggies have been or what they are contaminated with + with 40 years experience of home growing I can guarantee that anything I grow is A) much better quality.
B) has been flushed properly with a week's worth of just water through hydroponics before harvest.
C)un-comtaminated with dodgy chemicals to get crap weed to have some kind of effect other than just flavouring a pricey roll up.
D) Soo much cheaper and with all the above advantages..
I've never tried to steal electricity although I have all the knowledge etc to do it properly and safely,but then I'm growing for myself only so can limit myself to a 1.5kw maximum system,2x400w digital drivers and lamps,50w fan for filter,2x7w circulation pumps,1x55w air movement fan,2x50w tank water heaters.
Possibly a few more watts for timers and sensors..
It all adds up to far less than lots of folk us I in a day for washing machines,sound systems,showers etc etc..
I've even managed to do it years ago on a narrow boat in the canal,using to tech we had 20+ years ago,decent quality (BP) solar panels,large battery bank (makes very good,useful ballast for boat) and the most efficient inverter that I could source,with occasional top up of bat bank from a tiny diesel generator once a month,that all worked fine for 3 years,until I moved off canal and into horrible brick homes,yuk,if you cannot move it,I don't like living in it..