So it seems that the answer to the question "How do I get the lead out safely" is.... you can't! Well, back in the bin the battery goes.
I could probably hack off the external poles of the battery, but that is it!
When the right to effective self-defence is denied, that right to self-defence which remains is essentially symbolic.
Freedom: Please enjoy responsibly.
Any idea that relies on murder for its survival in intrinsically weak.