Anyone attempting to recover possession of their home from squatters will have to pay out substantial costs in alternative accommodation and legal fees. They also have to deal with damage done to their property, in the case of items of sentiment there may be little they can do. Owners often find that copper pipework has been removed.
It is not reasonable that an action that can cause such long-term distress is so lightly dealt with, and the squatters are usually free to go on their way.