Temper tantrums.
D000293:Adolescent; D000786:Anger; D002648:Child; D002649:Child Abuse; D002652:Child Behavior; D002653:Child Behavior Disorders / Q000209:etiology; D002668:Child Rearing; D002675:Child, Preschool; D005639:Frustration; D006801:Humans; D007323:Instinct; D009034:Mother-Child Relations; D011678:Punishment; D012056:Reinforcement, Social; D013315:Stress, Psychological