I've meet one lady at a JoAnns who knew what I was going to do. She said her husband shoots a flintlock.
I was looking for monks cloth to make char cloth once and none of the employees knew what it was. They had all the girls on duty looking for it. I finally found it myself. When I was paying for it the lady asked what I was going to do with it. I said "burn it" She looked at me funny and I couldn't resist yanking her chain, I said "the spell won't work if it isn't monks cloth"