DES MOINES, Iowa — A college student whose friend was being questioned in a hit and run found himself charged with assaulting an officer with a curious choice of weapons: M&Ms.

Sean McGuire was arrested early Sunday at a convenience store after Drake University security guards noticed the colored candies falling on the ground around the officer. When the officer turned around, an M&M hit his shoulder, according to a police report.

McGuire claimed he threw the candy because he was “sticking up for his friend,” who apparently was the man suspected in the accident, the report states.

McGuire, of Glenview, Ill., was released from jail Sunday after posting $1,000 bond. A telephone call to his cell phone Monday wasn’t immediately returned.