Suicide Wheels

Suicide wheels are when extra wheels are turned by other wheels. They are never needed, but they are so cool.

This is what I consider the propper suicide wheel.  Note how the top back wheel delivers power to the bottom back wheel.  You have to pedal backwards to go forwards.  Suicide.

This bike, however, has a chain driving the bottom wheel and all the other wheels are just for show.  It's cool, but is it as cool as really impractical danger?