To me, being too careful with a bow reminds me of the guy I knew who bought a new four-wheel-drive and then wouldn't take it to the woods for fear he'd scratch it.
I'm rough on them. I have weak legs and a limp from polio as a small child, and I hunt mostly with a longbow because it makes a much better walking stick than a recurve. I drop them out of trees, toss them up steep hills ahead of me, use them for hooks, wading staffs, and just about any other abuse you can imagine. I've never had a bow fail because of it, although I have ruined a few strings. The only bow I take better care of in the woods is my Dean Torges longbow. It's just too pretty to abuse, and it's the only bow I really have feelings for. Most of my others have been painted camo. I appreciate my bows, but not to the point that I let it slow me down in the field.
I always take a backup, with spare strings and arrows, on a hunting trip. I'm sure Fred did the same.