sometimes, even emergency hotlines aren’t off-limits. That was certainly the case when four-year-old Johnny, with all the seriousness of someone facing a life-or-death situation, picked up the phone and dialed 911—not because of danger, but because he was stuck on a math problem. Johnny had recently learned in preschool that if he ever found himself in trouble, he should call 911. So when subtraction became too overwhelming, he did exactly what he’d been taught. In his mind, being unable to figure out “16 minus 8” was a full-blown…
