Step 4The missing page!!!
the shopping cart force field OF DOOM version 2.0
Now with amplification, you can keep the hostile sentient shopping carts up to fifteen feet away! Stay tuned!
I haven't had time to solder up an amplifier circuit, yet. (actually, i did, it just doesn't work) if you've just got to have one now, try using a battery powered amplified speaker, and replace the speaker with the belt.
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