Remedy - lawful money solution

[NONOFED]

It's weird, sort of irritating, whenever I go & convert a 20 FRN for 10 rolls of nickels, they, (tellers) always
ask me what I want them for? And, I often struggle and have "bite my tongue" before
I inappropriately chastise, "What business is it of yours...?"
So, my more reasonable reply, is typically made with eyebrows raised, "Why do you ask?"

I told them that I prefer to use coin for my daily transactions, which is true. But they are trying to classify you, trying to determine if your a collector or what not.