My dad met this guy (by luck) that had used the electric fence, he said it was great, but the wire goes bad within a year or 2 & using the lightest shock doesn't even work... The guy said he had pros but one in, the wire was much thicker & had lasted 3 yrs so far with no problems & he got the heavy duty shocker & it actually worked... he said he tried it first to see it it was too strong & he said it gave him a good jolt, but didn't cause any pain... so get the pros to do it

stay away from the ones in stores