Bulk head connection issues

We just discussed why that isn't so.
High current doesn't flow through the meter unless there is a big problem.
Pegging either direction is well into danger territory, shut it off.
Of course if one doesn't know that, then maybe it doesn't matter other than for diagnosing the problem. :(
If the person is lucky, the fusible link will fail.
If less lucky, then other damage will occur like this or this.