It's 4:00 p.m. Do You Know Where Your Teenager Is? takes

For teenagers who lack adult supervision when they get home each afternoon, the phrase “afterschool activities” is likely to encompass alcohol, tobacco, sex and other forbidden pastimes. And a study conducted for the YMCA finds there’s no shortage of unsupervised teens. Fifty-nine percent are left unsupervised at least one afternoon per week, and 39 percent are on their own three or more afternoons in a typical week. Among those left to their own devices at least once a week, 14 percent said they “frequently” or “sometimes” use marijuana or other drugs; just 4 percent of those supervised every schoolday said the same.