As one of the few on the CR with a classical education, including 6 years of Latin, I don’t find it surprising that many of you are confusing discipline with punishment.
Discipline comes from discipulus, the Latin word for pupil (Masculine 2nd).
Discipline is the teaching someone to obey and adhere to a set of standards of behavior. Violation of those standards may result in punishment. If the teaching is successful there will be no violations or punishment meted out,
The patch en tuchus is not discipline, it is punishment.