With their delicious hugs and big sloppy kisses, not to mention the way they melt into your embrace when they’re tired or shy, toddlers are delightful little people — until they’re not. Case in point: your sweet angel, who’s playing quietly one minute and suddenly, without warning, lays into you with a punch to your arm … or tummy … or thigh. Yup — toddlers throw tantrums and hit. They kick, shove, hold their breath and even bite.