My sister once explained to one of her friends, in my presence when I was at a young and tender age, that the B.S. was a compensation for my total lack of personality.
I did try once "having a personality" but it didn't work out at all well, so I completely discarded that mode of operation.
As you know, B.S. detection is much more useful than B.S. production, in the real world; but a certain level of development seems necessary in both sides of the matter to have useful ability with either.
Spaw -
The "hammer dulcimer" was a deliberate plant, to induce you to enter the discussion and reveal the exotic scale secrets of the "cheese slicers" (the real and proper technical nomenclature).