RE: 'little rust'
- The tiny pebbles turn over the big chariot
- The Devil is in the details ...
Do you want more proverbs to this.
The rust cannot guarantee smooth, clean, sterile and sharp edge of the razor. It cannot guarantee even that you will be able to clean up the razor well. The razor is not shaving smoothly any more, but rather disrupts the skin tissue ... and the tissues underlying it, thus destroying biological barriers and paving the pathway to germs, viruses, bacteria, aggressive strains of Candida, etc. ... to invade the tissues.
It doesn't matter whether the germs have been on the razor before the rust or after the rust, whether they have been on the skin before or after the shaving ... or appeared on the scene much later.
The invasion of the nervous system by Candida overgrowth (MS) for example comprises a 'fatal system error', no matter whether it is caused by correlation or causation, or something else.
Conclusion: the usage of a rusted razor is not an idea of first smartness ... and never has been.