Toddler parents all over the internet have found a new friend in "Jessica." But here's what experts want you to know. My son had some pretty epic temper tantrums during his toddler years. The worst was when he was nearly 2 years old, and we were on a plane that was waiting in a queue on the runway for takeoff, and he was screaming and crying. It was his first time on a plane, and no matter what I tried — his LeapFrog tablet, coloring books, singing to him — he wouldn’t settle down. After