He served in WW2 in a capacity for which no records exist. One anecdote from the filming of LOTR was that he had a very specific knowledge of the noise someone makes when they've been stabbed in the chest. He explained that the victim doesn't cry out, because they cannot force air over their vocal chords anymore; it comes out of the hole you've just made instead. They just kind of wheeze a bit.
Spooky.
I'm blanking on when Saruman was involved with a stabbing. (Apropos of nothing: this just put me in mind of the recent euphemism "Police-involved shooting"; i.e.,
cell-phone video footage of another Sauron-involved stabbing is stirring controversy today in Mordor...)
Incidentally, I kind of can't believe he was only 93. Watched a very,
very early Sherlock Holmes a while back (1930s, I think?) and he seemed, while not old exactly, at least grown--the tree you don't worry about watering anymore. RIP, ya old badass.