Headline writers were the original Tweeters, the original creators of pithy sayings. This one from Lucianne.com is from the U.K.'s Daily Mail, attributed to Kathy Gyngell; it needs no explanation:
Why are we surprised so many children are too badly behaved for school, when their parents are too busy to bring them up properly?
And then we blame the teachers. I could not have said it better if I tried for a week.