Last night I dreamed I was buying something and opened up my wallet to pay. I had several fives, some ones, and.... a $28 bill? Also a $69 bill that felt obviously counterfeit. The clerk didn't want to take the $28 bill since it was so unusual. Not counterfeit, or non-legal-tender, just... unusual. Like someone saying you should keep a $2 bill, or a $1 coin.