I will stipulate several points, but be aware that these events may be real or imagnied, as no actual records were kept.
- that at one time that a BS I am familiar with had a blade on it that looked an awful lot like that picture
- that the story behind it sounded like yours
- that no one actually publicly acknowledged cutting (or attempting to cut) something uneven freehand without support
- that the owner of said BS decided that the blade was indeed toast
- that it's possible the lesson was learned, but that such real or imagined events may have indeed been repeated before such lessons were applied to practice
(Posting for a friend).