Man do I understand this. Today I was unloading some steel out of my pickup and I'd backed into a tree and bush congested area to get the carrying distance as short as possible. I grabbed a length of I-beam and as I turned to take it away my foot caught in the remains of a rotted picnic table and I went down under the weight of the I-beam. I looked around once down and on one side of my face were three 16p nails sticking up through a board and another behind my head with two nails sticking up. That was close.