The student told the teacher he brought in the grenade because they were studying WWII and said it belonged to his grandfather. Once spotting the item, the teacher removed it from Johnson Academy and placed it in the school's courtyard.

Parents were notified about the grenade, and police said Miguel always thought it was a "dud" so she let her son take it to school to show his class. The Connecticut Bomb Squad said the old grenade could have detonated and hurt someone within a 15 to 20 foot radius.
Even if it was a "dud", I would not let my child take it to school with them! I would like to know what made her think it was a dud.