Anxious to find out that my neighbor stole my electricity! ! ! !

If you take evidence, you pull out the switch of the watt-hour meter and see if there is anything unusual next door. You can ask the public security organ. But it is really necessary to take out stitches to obtain evidence. There is no way. For example, the wires are buried in the cracks in the wall, even if you remove the ceiling, they are hidden.

Or you can short the live wire and the zero wire of the watch. Or add a transformer. Several transformers connected in series are installed behind the electric meter. The electricity in your shop is high voltage. Then be sure to turn off your appliances. Transformers can be bought online. Of course, this is revenge. Remember, we can't startle them now, and then their appliances are burned by high voltage electricity. Naturally, this can also be regarded as evidence.