Categories Articles Study: Calm kids suddenly get aggressive to deal with ill-tempered playmates Post author By crystalg Post date October 19, 2020 Study Finds Tags aggressive', calm, Deal, illtempered, Kids, Playmates, Study, suddenly ← After a lemur was stolen from the San Francisco Zoo, a 5-year-old boy helped zookeepers track it down → Star Wars: Squadrons Crams Tons of Fun in a Tiny Cockpit