Although not all children with autism display aggression, it is a very common symptom, as temper outbursts & outright tantrums are common. These can range from a brief explosion to a total meltdown. Children with autism may also strike out through hitting and/or biting as well as by destroying objects & possessions. A child with autism throwing a tantrum is not "spoiled" or a "brat." Parents of kids with ASD hear these terms quite often. These behaviors are symptoms of a disorder, not a result of poor parenting skills.
From the Always Unique Totally Intelligent Sometimes Mysterious Facebook page.