In their experiment, Tao and Huang showed that applying a 1.3 T magnetic pulse to a small sample of blood can significantly reduce it's viscosity.

Imagine a metal that "remembers" its original, cold-forged shape, and can return to that shape when exposed to heat or a magnetic pulse.

But after getting the magnetic pulse, the volunteers tended to see nothing wrong with his actions - and judged his behaviour purely on whether his girlfriend survived.