Where are there discussions about Torah commands that nobody is known to have broken? These discussions can come anywhere, from the Talmud to the Midrashim.
We read from Devarim 21:18 כִּי-יִהְיֶה לְאִישׁ, בֵּן סוֹרֵר וּמוֹרֶה--אֵינֶנּוּ שֹׁמֵעַ, בְּקוֹל אָבִיו וּבְקוֹל אִמּוֹ; וְיִסְּרוּ אֹתוֹ, וְלֹא יִשְׁמַע אֲלֵיהֶם
As we all have read, if the son in question is found guilty, he is stoned to death by the elders.
If I heard a rabbi's discourse correctly, no son was ever found guilty of this command, really? That is, the presence of this command alone was enough to scare any son to stay away from breaking this command; whether this rabbi was correct or not (it does not matter, for the sake of this posting), where is there a list of Torah commands (that were discussed by the sages), where there is no record that anybody broke such command, or that nobody was ever convicted or sentenced despite committing the sin because of the Halachic intricacies of that Commandment?