There are people who can run 37 more miles than you and still get to the finish line before you do. The last mile is longer than the first four. Stay far ahead of the guy whose t-shirt says “Pappa Joe.” The LBJ Grasslands are not flat — as in, climb every mountain; ford every stream. Don’t run up a hill unless you can see the top. Trail runners will tell you “good job” even when you’re walking. Compressors are just as loud on the prairie as they are next to your house. The Grasslands are also flammable. Don’t get between a mamma cow and her calf. Try not to think about all the wild hog tracks you are following. You learned the best survival lessons in kindergarten: carry jelly beans and eat the peanut butter crackers at the aid station.