Without pics - its just a story.

In high school, we lived in a house on a corner and at least one arsehole liked to cut across it regularly. One day my father had had enough and drove a long, thin metal pole filled with concrete into the lawn. He left it sticking up only about a foot and a half, so it was hard to see unless you knew it was there. We didn't hear it, but one day we saw that the pole had been hit and was slightly bent over. I don't know what it may have done to the car or what the guy must have thought when he hit it, but I wish I did. My dad just straightened the pole back and left it there and I never noticed it get hit again. I thought my dad was awesome.
Sorry, no pics. This was early 90's.