And on the occasions where I can only make (exact change + simple amount), I often get deer-in-headlights looks from cashiers who can't do mental arithmetic and apparently haven't learned how to get the machine to understand payments of more than one physical bill or coin.
The majority of the comment was spent on being disparaging towards people who work in retail.
(Entering a discussion about that kind of topic can be a pretty sure way to invoke Godwin's Law, so the most sane and civil option is to downvote and walk away.)
And on the occasions where I can only make (exact change + simple amount), I often get deer-in-headlights looks from cashiers who can't do mental arithmetic and apparently haven't learned how to get the machine to understand payments of more than one physical bill or coin.