A little off subject, what Falcon wrote reminded me, have plenty of water handy. I most always have a Mil Spec heavy plastic five gallon water jug with me (in the truck). I installed a plastic spigot near the bottom.
Gut shooting a Hog or screwing up the gutting can make a mess. Best if you have the ability to wash most of the bad stuff off the meat quick. Prepare for the worst, hope for the best.
There was a time when I packed everything imaginable with me when hunting. I now keep it to a minimum, Water is one of the necessities (and toilet paper

).