Speaking of making sure things are disconnected first. Last week I was putting a new collar on my dog's invisible fencing collar (a must so he doesn't sicken himself at his sea side buffet on the shore.)
I told my wife I was just going to go crank the signal gain on the transmitter later to test it because I was too lazy to go out in the cold. She thought it would be funnier if she did it right away while I was still working on screwing in the leads through the collar material.
Lesson learned = remove the battery next time. She must have really cranked it up because it totally skipped the warning beep that occurs when he gets close to the perimeter.
