There are far better ways to test sharpness.

It's funny how we worry about getting sliced and diced by a sharp
chisel or a power tool - but don't even think about things that can
do a number on you. My DUH! thing is nice square corners of long
boards. Pick up a semi-lnig heavy board, let it slip in my hands to
get it on the bench - or shop floor - and discover that even a 90
degree "bevel" can - and will - open up skin - especially that thin
stuff between pads on fingers.

I tend to perform a modified version of the Hokey Pokey - waving
the injured body part around - gracefully - but rapidly.