A little off topic but I always found it interesting that the "theft" of electricity is actually called Abstracting in UK law, since you can't really steal the electricity itself.
> ...it was held that electricity could not be stolen as it is not property within the meaning of section 4 of the Theft Act 1968... Before the Computer Misuse Act 1990 those who misused computers ("hackers") were charged with abstracting electricity, as no other law applied