My daughter and I just made it inside the base library for story time when the base went into lock down and the doors were shut and locked. Real world lock downs are rare, and they are usually done within 20 minutes. Not today. After story time (30 minutes), we were still in lock down, so we settled down with some books and just kept reading/singing to the kids. About one hour later, the lock down was lifted and we easily made our lunch date on time.
Just saying, if you ever need to be in a good place during base lock down, be at the library!