Its a superconducting magnet that cannot be instantly shut off. I am sorry that the physics of this makes you so angry.

Couple things:

The magnet is ALWAYS on.

The “kill switch” takes about five minutes to actually deactivate the magnet and it costs about thirty grand in helium every time you push it.

Why even grow them with arms and legs if they are just going to be batteries? Wouldn’t it be easier to just grow cows instead?

Big time.