a wonderous question indeed!
well, the bad news about winston
the wartime prime minister iwas that
he slept a lot and did many things in bed.
he however did smoke an awful lot.
perhaps he had a knife or something
for that iconic habit?
oops! bad news,
"...Churchill became renowned as a cigar smoker. As such, he received many cigar cutters as gifts over the years. Despite this, however, he did not use a cigar cutter on his own smokes. Instead, he would moisten the end of the cigar and use an extra-long match to poke a hole through it..."
https://www.havanahouse.co.uk/living-like-winston-churchill-blog/
lets face it, any probablle frequent use of
knives in churchill's hands must have
come in the form of table cutlery

oh and btw churchill had a bodyguard
https://www.fsknife.com/a-fistful-of-history
perhaps, all cutting chores went to him ;-)