When my son was at primary school I asked his friend's mum what he would eat on a play date.
She said he ate very generic food. I took that to mean he eats a broad range of foods.
When he arrived I asked him if he likes chicken and he said yes, loved it. So I made potatoes, veg and pan friend chicken.
He asked for more and ate a lot of it which I was delighted about.
I dropped him home and said he ate a great dinner and had ice cream after. I didn't specify what he had eaten.
When I got him dh (who had been working outside during dinner time) asked how we'd got on and asked if the kids had a different meal to what we were having.
I said no, they ate the same and I'd left the little boy home (they were about 10).
Dh said "but he's a vegetarian. Did you make him Quorn?"
I said he's not a vegetarian, his mum said he ate very generic food... No, she had said he ate vegetarian food...
I messaged the mum apologizing profusely, I was so badly done about it, she sent back a text saying he's old enough to know what he's eating and he's ate sausages at a friend's house before so don't worry about it.... But I could never look her in the eye again.
And she was a teacher at the DSs school!!