I learned that a tall, impenetrable wall is not always a good thing. You can compare my wall here to the one in the picture below. My wall is not as high or imposing as some of the barbed wire walls in my neighborhood. But when my lock froze on the gate. Even I could get over this wall to get to work on time Friday morning, May 5. So it made me wonder, who is this wall really going to keep out? A fair question to ask about any wall.