It's perhaps worth pointing out how section 1 of the 1978 Act came about - it reads:
A person who by any deception dishonestly obtains services from another shall be guilty of an offence.
The problem with the basic definition of theft (in an earlier Act) is that it covered the taking of
property belonging to another person, but if you're provided with a service such as a taxi ride then there's no property involved, unlike if the person stole the actual taxi.
So the 1978 Act was passed to cover the provision of services.
Another interesting aspect of the original Act was that the thief had to intend to "permanently deprive" the owner of the property, thus if somone just borrowed something then it wouldn't amount to theft.
However, this meant that joyriders couldn't be convicted of theft because they didn't intend to deprive the owner of the car permanently, just borrow it for a while
So the offence of "taking without owner's consent" was developed to cover this, and hence the phrase TWOCCING
