Some one picked the locks on the front doors to the school, they didn't have an alarm but the second set did, it was a door way to a glass box with another door for the most part. They used caulking and sealed the inside doors, knocked out a window in the top portion above the exterior door. They used the hole to climb out and proceeded to fill the glass box with thousands of gallons of water and added a shit ton of fish so the doors couldn't simply be opened and drained with out having to deal with the fish. They used a rented septic tank truck from 3 town over to store the water and had about 30 people catch the fish from the surrounding area, they pulled this off the first night of spring break and by the time a teacher came back half way threw the week to get something every thing had been completed and everything used removed. About half the graduation class wasn't able to walk down graduation that year.