True story.
In 1982 when I hung out my shingle on the main street of town as a CPA, I had a big beautiful sign hand painted to announce my location.
The ornate sign was about 2 ft high and 3 ft wide, hanging from a sign post so it was visible from both directions.
Problem was, on both sides of the sign, in letters several inches high, directly under my name, were the words CERTIFIED PUBIC ACCOUNTANT.
I took pictures of the sign before I returned it for correction.
LOL. I totally believe it, as someone who has made the identical correction many times.