@MatthewWalters1, while I was a Scoutmaster, I never cut corners off Totin’ Chip cards. I simply took it away, and the Scout had to re-earn Totin’ Chip. I had two reasons for doing so.
The first, far less important, reason was that cutting corners off a card could lead to hazing. I did not want any Scouts being teased that they had already lost two or three corners.
The second, far more important, reason was that safety to is be taken seriously. Cutting a corner off the card for a violation is like saying you get three free passes to be careless. I don’t think there should be any free passes. That isn’t to say I took cards away frequently. When a matter came to my attention, I gave the Scout an opportunity to explain, and then I made a judgement call. None of us are perfect, and if I felt the Scout could continue using tools safely, I ended it there. However, if that first violation showed recklessness or carelessness, I was glad that the Scouts were all aware that all it took was one violation to get your card taken away. I wasn’t stuck with cutting a corner off and waiting for the Scout to be careless again.
As a Scout, my troop did cut off corners. I still have my Totin’ Chip card from 1977, with all four corners intact.