We have a pool which means that the yard has to be completely fenced in. The city has standards for the fencing. There are two inspectors: one comes out with a tape measure and meticulously measures the distance between every slat in the fence. The other walks around with a tennis ball attached to the end of a stick and pokes it in where he thinks there may be too much gap between the slats.
We had a more stringent test. Our yard was “puppy proofed.” If a puppy can’t get out, then a child can’t get in!
John Deering and John Newcombe