The next time your preschooler needs a show and tell item for the letter "G" whatever you do don't send him to school with a grenade. Or two grenades. Unless of course you are also trying cover the letters "B" for bomb squad, "P" for police, "F" for fire department, and "E" for evacuation.

A Massachusetts preschooler caused his entire school to be evacuated when he brought 2 grenades for show and tell.

"One of the children came downstairs and he was very excited he had something for show-and-tell. He opened up his backpack and out came two grenades," said co-owner Carole Grenier.

Grenier said at first she thought nothing of the grenades when the boy took them out - that's when several parents walked in whom also happened to be police officers.

"And another parent came down who was a police officer and he said, ‘Oh, no, these can't go to school. You have to call the police,'" said Grenier.

Minutes later the Chicopee police, fire department, state police and a bomb squad were called to 27 Streiber Dr. About 15 children were evacuated from the building while officials investigated.

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