It's not a legal requirement to look both ways before crossing the road, but it's stupid not to. So we're dealing with stupidity and arrogance, a dangerous mix that never ends well.
Want to escape? Not so fast sucker! We've lost your personal data but we still have you by the short and curlies. We might even lose your data again. Pay a penalty to leave? Pah! The ICO should step in now and direct TackyTalkTalk to allow users to leave their contracts early.