It was a bad time to choose to visit especially if your MiL was planning a special last meal. Although my house is always open to unexpected visitors I would have been rather put out myself, mainly because the meal might not have stretched to another 4 (?) people.
That said, your MiL could have been more tactful and handled the situation better. I'd have asked you to come back in a couple of hours saying that we were just about to eat but would love to see you then.
49,000 migrants invade Spanish enclave in 24 hours
"Old fashioned" expressions that young people have never heard.




I suppose it's true that there's nowt so queer as folk!