Massachusetts ? A 6-year-old boy is getting a lesson on the meaning of sexual harassment long before he’ll be able to spell it.

The first-grader was suspended for three days for sexual harassment after he put two fingers inside a classmate’s waistband, school officials told his mother, Berthena Dorinvil. The boy told her he only touched the girl’s shirt after the girl touched him.

Experts say only in rare, troubling cases can children that young sexually harass one another.

Dr. Elizabeth Berger, a Philadelphia-area child psychiatrist, said this case seems to be an overzealous attempt to ensure students feel safe in school after years in which society was not attentive enough.

The boy’s mother called the Jan. 30 suspension from Downey School outrageous. She said she can’t even explain to her son what he did wrong because he’s too young to understand.