Electrifying?

The local farmer informed us, as she delivered the weekly eggs, that someone is tampering with the electric fence that borders our garden as well as others. The battery is connected to a solar panel and is discreetly hidden very near the back of our greenhouse. I was shown how the solar panelled battery system works and very definitely someone has bothered to come up and flick the switch off. The farmer says it is well known that dog walkers tamper with electric fences in fields where they think they have a right to roam. There is a footpath through this field so why on earth should someone bother to creep up in full view of our house and switch it off.

To prove a point, during that very next night the battery was switched off, the cows broke the electric fence in several places. The cows did no damage as all of us have post and rails boundaries. I have now volunteered to check the battery morning and evening. I am left wondering how people can be so petty to wander around in the night turning off electric fences. I might scare these people off if I were to sit in our greenhouse all night, jump out in my hideous nightie and say "boo". What do you think?