[Cass]

Oh, and I phrased that badly, but he didn't drink a ton of tea at the hospital. The hot water for tea comes in limited amounts from those samovar type things, and he didn't want to use too much of it, so he only drank 2-3 cups per day.

We were all burningly curious whether the liver failure would come back if he resumed his normal green tea consumption, especially him (very "try everything, you only live once" type of personality; see also, consumption of mysterious Peruvian rain forest drugs), thus proving whether the tea was the culprit or not, but for ethical reasons I had to caution him against experimenting on the only liver he had, and he reluctantly agreed he wasn't THAT curious. Therefore, the cause of his liver failure will never be fully and conclusively proven to be green tea.