They are just sitting in the rafters. These genets live in the roof of the restaurant and come out during the evening, sit around for a bit to watch the patrons, then leave to go hunting. The 'rafters' are actually beams put in especially for the genets and serve no other purpose. The genets were well-habituated to the presence of people, but remained out of reach.
The lodge was great. Nice comfortable large rooms, and restaurant was really nice too. In the evening they had a campfire outside. And I'd just spent a few days in a tent in the Serengeti so I was really happy with the place.
However, despite there being a lot of wilderness right next to the lodge worth exploring, you couldn't venture into it due to the dangerous animals. So I could only see what was around the lodge. The rains hadn't yet arrived, so it was rather dry, yet it was overcast the one night and following morning I was there, which was not the best for photography.
The following morning as we left for Ngorongoro we went for a drive around Lake Ndutu and Lake Maslek, but saw very little.
Still, I'd include it on my itinerary again if I ever return and do the Northern Circuit.