I've bought Kerfur, only for it to dash somewhere never to be seen again. After remembering about him, I checked his camera - he was stuck somewhere underwater. I couldn't get him out using camera controls of the what I assumed to be river, as he couldn't climb up underwater ground. I tried searching for him, but never found him. I noticed on the radar that there was something in the river on the edge of the map, but still couldn't find him. After I returned, I noticed that the blimp on the radar is no longer there.
Brand new Kerfur proceeded to drown himself, with his body never found :(