My mom actually did this but in some song that goes "Takin' care of business, and working over time." she thought it said "Takin care of biscuits, and working over time"
A childhood belief about misheard lyrics

others believed things like this
- I used to think that when the power goes out, the water also stops working.Anon
- when I was little, I used to think that everyone was a child but someone invented adults to take care of us.— chocolate
- I used to think that Shamu was my whale and that he just lived at Sea World and they took care of him for me.Anon
- "Care less whispers"- I used to belive he siad "Cat less whiskers"— Puts the B in Wicth
- i used to believe that the factories were care bear factories because of the clouds of smogAnon
- I thought pink wafer biscuits would bite me if I touched them. Absolutely no idea why.Anon