For all Father's Day fans out there, "What's So Jewish About Father's Day," from the PJ Library website. Also see "Preliminary Thoughts on Father's Day" and "Being a Single Father and Keeping the faith."
- That we should knock before opening a closed door, even in our own home. How many of us do that? By extension, a creditor is not allowed to enter the home of a debtor - he must remain outside and the person brings his pledge out to him.
- That we may not put a window in the wall of our house if it looks in on someone else's house.
- In the 10th century, a sage named Rabbenu Gershom ruled that it is against halacha for us to open someone else's mail. This was punished by excommunication. And from this ruling is derived the general principle that we are not allowed to search out the secrets of our fellow. We can't pick through his garbage, we can't do undercover work to discover trade secrets. What's private must be respected.