Yes, kids are around.
Here is what the box looks like, minus the front glass and overflow:
The top opening will be covered with 3/4" plywood and bolted down. The top plate will have a feeding door cut into it and this door will be attached with heavy duty hinges and pad locked. The front will consist of two sliding 1/2" thick plate glass doors with a lock holding them shut. The door tracks will be made out of laminated plywood and will be bolted to the cage. Vents will be cut into both sides and screened in with heavy weight mesh.