A Colorado second-grader may be suspended from his elementary school after he disobeyed a key rule of no weapons, real or imaginary, when he tossed an imaginary grenade Friday during recess and went, 'pshhh,' to indicate that the imaginary device detonated, KDVR.com reported.

Alex Watkins,7, who attends Mary Blair Elementary in Loveland, said he was playing the game "Rescue the World." He plays the role of a heroic soldier out to rid the world of an evil threat.

His duties led him to throw the imaginary grenade into a box he pretended contained evil forces. He said he didn't make any threats and was playing by himself, KDVR.com reported.

The school has a list of 'absolutes' that states no weapons, even if they're imaginary. A phone call Tuesday morning from FoxNews.com to the school was not immediately returned.

"Honestly, I don’t think the rule is very realistic for kids this age," Mandie Watkins, Alex's mom, told KDVR.com. "I think that when a child is trying to save the world, I don't think he should be punished for it."

Alex, for his part, told the station that he can’t believe he got "dispended."

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