electrical cow fence

I had this drawing idea about what my sister and my/her friends sometimes did when we were walking next to an electrical cow fence as children. like you would take the hand of the person you were walking with and touch the fence and they would be the one who gets shocked!
The electricity never was that strong most of the time, but one fence, oh boy, one fence was sooooo strong, it always made us cry (we were in kindergarten btw) whenever we did this or accidentally touch them
That fence has now been replaced by a newer system.