This time, an Arizona couple pulled their eight-year-old son out of a charter school last week after school officials threatened to expel the boy for his colorful drawings of a ninja, a soldier and a character from Star Wars. All three figures are clutching guns and knives.

The threatened expulsion occurred at Scottsdale Country Day School in the suburbs of Phoenix, reports local CBS affiliate KPHO.

The boy’s father, identified only as Jeff, said the three drawings represented his son’s Halloween costume options.