You can donate part of the liver, but it isn't "like nothing ever happened". This followup[1] of donors from 2011 found that 53% suffered long-term complications (though 93% would have gone through with it again). Notably missing from those stats is the percentage of donors who died after donation, either due to direct effects, indirect effects, or totally unrelated things.
Donating one of your two kidneys is maybe a "like nothing happened" experience, but donating a partial liver is much more complicated with worse outcomes.
100% not the same as Alex's sad situation, but for kidneys a dual stem-cell-transplant and kidney-transplant has been done[1]. It was NOT done due to cancer (but due to kidney scarcity) and was NOT done for the liver. I don't think it could ever even be done for the liver because stem-cell-transplant cannot (to the best of my knowledge) be done from a cadaver-donor. Maybe some medical center would be willing to try a living-donor for SCT and partial-liver...but I'm not sure it would get past the ethics committee.
For non-US donors, check out WMDA[1] for information on joining a marrow donor list. Many countries have some sort of donor-sharing agreements. I know someone in California who received a donation from someone in Germany.
It is a great source of useful information for patients and families. Anyone going through a similar process knows the horrors of googling for information. You end up with all sorts of pseudo-science (e.g. "paleo cured my cancer"), false hopes (e.g. mouse trials which sort of address particular variants of mildly related diseases), and sensationalist terrifying stories of the horrors of chemo.
It is also a great resource for finding support networks, both in-person and over the internet. (Seeing a therapist or joining a support group is so important for both patients _and_ those close to the patients!)
* One chest CT per hour for touching the ore (or about 9 hours touching the ore to reach your annual max dosge)
* One head CT per hour for touching the bucket
* nothing for 5ft away
* One chest XRay per hour touching the cabinet (less than a cross-country flight LA <-> NYC)
[1] https://xkcd.com/radiation/