Spend a day in your work area making a mess. Run all the power tools, buy some wood and cut it up (it's not important to actually create anything beyond a mess). Hook a battery up to the toolbox (nothing life-threatening, a 12-volt will do) so your wife will get a little jolt upon touching the holy cannister.
I don't imagine it will take more than two or three weekends to train her.
That, or tell her you'll go back to the Hall if she never touches your toolbox again.
Hmmm