Be careful... a word from experience.
I have been custodian of my Grandfather's souvenir Katana he brought back from Borneo since I was 16. Of course, you play with it a little...
Was trying to put it back in the scabbard like the Japanese do with that hold the scabbard throat and run the sword to it, then in.... well, thumbs get in the way.
STRAIGHT to the bone. CHIPPED the bone, or should I say sliced the bone on my left thumb. Didn't even notice for a while - the blade is THAT sharp (yes, real ones are RAZOR sharp). Was more concerned for sword blade than me, and even though no blood on it, still wiped it over with clove oil to be sure. THEN I attended to me
And mine is just a plain old Shin Gunto, but with a personal family story attached.