Love it! I can imagine how the conversation went:

"But boss, customers expect raisins in muesli."
"No they don't. Name one."
"Ah, my mum. She loves raisins in muesli."
"Gah, Are you trying to make my point for me? Noone of any merit likes raisins. Full stop."
"Oh. Okay. Then while we're at it, why don't we just not put any fruit at all in it?"
Take all the fruit out of muesli? Remind me why I hired you again? If we did that it would hardly be muesli any more, would it?"
"S'pose not. But I guess we could call it something else. Like-"
"Oats and nuts?"
"Yes!"
"Dougal, you are a complete idiot. Put a window in the bag and tell the punters we took the raisins out. They'll lap that up."
Nods dejectedly.