I think if you get caught growing and trying to fiddle the electricity, it's a lot more serious than just growing. It's one of those things that's likely to push you across the custody line. I think it's a really bad idea to start dicking around with your meter.
i agree its too dangerous to tamper with your meter ...and getting put in the nick for abstracting electricity.
i also agree with rocky .. i think its a scandal to rob the poor for easy profits because you cant afford to pay quarterly.
the woman at the pay point always looks at me funny when i go in to get £40 on my pre-payment key for a week's worth of electricity lol..