I got inside a beautiful french pastry in geneva. Was hungry so took many tasty looking things...when they told me they did not received CHF, no euros. I told them that euros were a real currency 💴 . Worth more than theirs. I had the bleach empty handed there and in other places. Survived on beef jerky until I arrived at Basel were I could find an exchange (never a €20 small burger at midnight has been so tasty)