1983. I am in California, first time in the USA, and I am being taken out to a Mexican restaurant by my appointed host/guardian. I could not believe what I was looking at when refried beans turned up on the plate. It is cow pat. Might vary in colour a bit - but still cow pat. I did not like it then (I was just 26yrs old). Over the years I got to really like Mexican stuff, including the refried beans. The lads and (few lasses!) at work had cold burritos with said beans, obtained from a vending machine in the corridor and munched while hunched over their screens (old green text screens in those days, it was a computer company in Sunnyvale Ca.) Alongside the screen was the obligatory jar of green M&Ms.
Rather like Japanese foods - best eat first and then ask about what you have eaten. If you go the other way round, you will not eat it! But the Japanese like soup for breakfast - I never could warm to that one!