Interesting. But how long you stay in this house?
BTW, there's something we never do all the time, which is taking out that outdoor rod and have a check on it
Like last time I work in O&G company, they have schedule to to a test on the copper rod.

Yes, indeed it is buried in the ground.
That's why we need to do a visual check.

If it is something needs to be done, it has to be done. Doing some dirty digging works is tedious or getting a house burnt down is tedious?