I had a psycho-nut case working for me at my last job who dispatched the neighbors aggressive dog in this method: He got a large piece of expanded steel, about 4'x4' and cut a hole in the middle and placed it on the ground outside of one of the garage windows. He ran the cable from his Lincoln 225 tombstone welder out the window and zip-tied the stinger to the expanded metal so the clamp was inside the hole. He attached the ground clamp to the edge of the expanded metal. Next he cleaned the flux off a welding rod and placed it in the stinger pointing upwards. Every day, he would skewer a hot dog on the bare electrode and the offending pooch would come over and eat it. When he got down to the last weiner in the package, the dude was watching from the garage window and as the dog was enjoying his frankfurter, the nut case flipped the welder switch to the on position and electrocuted the dog, killing it in short order. This process was planned out so that the execution took place on the eve of trash day. He simply bagged the dog and placed it in the dumpster for curbside pickup and no more dog problems.