I carry a very small screwdriver and some neoprene profiles, and superglue. As an emergency fix. With the weight off the tyre, totally deflate the tyre. Identify the puncture, and remove the nail or screw. Then either insert the screwdriver with some superglue on the shaft, and pull it out fast, or for bigger holes, insert a small plug of neoprene covered with superglue, and pull the screwdriver out fast. Wait a few minutes, then reflate the tyre. This will get you home. Because in the Highlands it could be a lot longer than a 2 hour wait.
Obviously a bodge, but better use of time than hanging around. Then get it sorted at home.