Asimov's First Law

"A robot may not harm a human being."
The first law of robotics by Isaac Asimov.

Artificial intelligence is a topic widely used in the media, however, exactly how far are we from such technology? Are these fears towards robotic developments necessary or purely irrational? What is it about these currently fictional characters that scare us? Are there existing domestic objects that already break this law?

Scales, although they don't perform physical harm, have been subtly damaging us psychologically. Should objects like these exist in a complex society like ours where people are more emotionally fragile?

WHITE LIES
This scale allows one to lie to him/herself. The further back you stand, the lighter you become. The user can gradually move closer and closer to reality.

HALF-TRUTH
This scale puts your partner responsible for deciding whether to lie or hit you with the truth.

OPEN SECRET
This scale reveals your weight every time you weigh yourself by sending a text message to the desired mobile phone. The receiver is then responsible to reveal the answer immediately or the next time you two meet.