Quote Originally Posted by Frankenstein View Post
the author relates a story about a father who said 'the most useful thing you can teach a young man is how to shave in cold water without a mirror'.
It does not say to teach your son that he should shave with cold water, etc, but that you should teach him how to do it, perhaps in case of needing to do so?

I think it falls under the "spare the rod, spoil the child" category!