My school will be having a lockdown practice in a few weeks. For an unlimited amount of time (15 minutes minimum), we will be in our rooms, huddled in a corner with a locked door and drawn shades. The children must be quiet throughout the duration of the lockdown. Throughout the lockdown, the administration will be trying to "trick us" by doing things such as calling our rooms, knocking on doors, pulling the fire alarm, etc. I have the youngest children in the school (18 4 year olds) and I anticipate that this will be very scary for my little ones. I am looking for anyone with experience with this to give me ideas of what to do with them. Good books to read, ideas of things to do to keep them quiet and relax them while all these noises are going on that they have to ignore. Ideas??