"You catch a glint from the bushes and investigate, finding a discarded Shield. You bang it with your fist a couple of times - still sturdy. And now it's yours."
The cheapest (and perhaps the weakest) item in the whole game, the Shield cannot give too much protection. However, it is better than nothing and it's almost free, so it is a start when no other shields are available. As soon as another is found, this piece of wood becomes history.