Whoa, easy there, Stuart! You've come to this forum seeking advice and I think this is the best place for it. When you talked about the stuff in the back, my intent was not to imply you were ignorant, but was a genuine concern. I have a friend who is a retired highway patrolman. One time, we were talking about some of the things we see in the back of pickups and he told of an accident he worked where a pickup ran off the road and hit a culvert. The driver had a handyman jack unsecured in the back. When the pickup hit the culvert, everything stopped suddenly, except the jack. It came through the back window, hit him in the head, and killed him. So, I just wondered what you had done to prevent a disaster in a similar case. Myself, I'd install a headache rack or do something to secure that load of wood, but that's up to you. Feel free to take my advice, ignore it, or print it out and use it for toilet paper. Have a good day!
Bud