I don't see how that would work.
Last time I went to a barber (as opposed to a hair stylist and maybe 15 years ago) He used what looked like the old fashioned straight razor (as in Sweeney Todd) except the razor had slot for razor blade ( in the area where the foldout straight razor's blade normally would be). He made a point of removing the blade from last customer, tossing it in trash and replacing it with a fresh blade. I watched and this was SOP for each barber.
Last time I went to a barber (as opposed to a hair stylist and maybe 15 years ago) He used what looked like the old fashioned straight razor (as in Sweeney Todd) except the razor had slot for razor blade ( in the area where the foldout straight razor's blade normally would be). He made a point of removing the blade from last customer, tossing it in trash and replacing it with a fresh blade. I watched and this was SOP for each barber.