After half an hour on the road we could hear Arfar breathing very loudly. Concerned that it sounded rather strained, we stopped to check on him.
Poor Arfar was stretched out in his bedroom, seemingly unable to move. Luckily there was a water trough nearby, so we carried him over to it and turned on the cold tap to cool him down under the running water.
Within a very short time he was back to normal, standing up and looking at us as if to say, “That’s better! Time to get back on the road now.” He then walked in and out of the water a few times, then shook himself all over us as we escorted him back to the van.