CBM faulty installation is the worst , because it mostly involves electricity leaking and shitting all over you right in the moments when something else is also ready to take a shit on all your broken body parts.
i once had a long liver survivor fully outfitted with electric led lamps in his forehead and he got a faulty installed bionic that gave him pain and reduced strenght every time his power is more than 75%. he had the metabolic intercharge bioninc. At least i didn’t survive long enough to find out how much strenght it reduces.