When we had the farms in the 70's, we had a spate of break ins & my uncle rigged up 240v to the tool store door handles
Only thing wrong with that these days, if someone gets a good belt from that, then the police will be wanting a word or two with you.
Perhaps rigging a crop scarer to a trip wire to scare the bejesus out of them in the dead of night, or how about a thunderflash...that would work
Ingredients: Military grade thunder flashes or similar, Swan Vestas matches (or, preferably waterproof matches), elastic bands, glue, fishing wire, thick tape.
1) Remove the striker from the Thunder Flash and glue some of the matches to the surround of the fuse.
2) Next, cut out the striker section from the match box.
3) Tape some of the elastic bands to the sides of the Thunderflash, place the match box striker section under the bands so that the tension holds them in place. Leave it with striker face up.
4) Attach the Thunderflash securely in the vicinity of your trap.
5) Attach fishing wire - one end to the match box striker, the other accross the trip wire section.
6) Finally, turn striker to face down. It is now armed!
