Aside from the judging, unhelpful nature of the comment, what's interesting about that to me is that it highlights what I call an "old paradigm" of parenting. The best way to shape a child's behavior doesn't happen after they've done something WRONG--it happens before & after they do something RIGHT.
We the parents truly need to plan ahead, identify the positive behaviors we want to see more of, and work consistently to support, recognize & reward our kids when they show us THOSE behaviors--not the bad ones.
The ideas above, although not new, are newly presented in my current favorite parenting book. At this point it would make sense to tell you the name of the book, but I'm not, because I think the book title is misleading. It should have been named "Parenting 101" or "What Every Parent Needs to Know About Shaping Behavior", or "What Science Tells Us about Parenting" (since the book's methods are proven to work, based on results from many, many different studies by many different professional researchers.)
But alas, they didn't ask my opinion about the name, so I've just had to make up my own: "Behavior 201 for Parents". Anyway, I'm currently leading a book group on it, and plan to start another one in April. If you're interested in joining the book group, stay tuned, I'll send out more info shortly.
(PS. Follow the link if you want more info on the book, or to know its real title.) ;^)