When I was in grade one, a note was sent home to the parents, informing them that the students would have McDonalds for lunch at the Metro Zoo visit on Monday. The note was sent on Wednesday, the week before , and one kid whose parents were recent immigrants, didn't speak any English, didn't understand that lunch would be provided at the Zoo and instead went out, bought and refrigrated a McDonalds Happy Meal, that Wednesday. The kid brought the 5 day old McDonalds to school, I remember the teacher laughed, but stop laughing when we got to the Zoo, at lunch time, the kid ate his aged McDonalds meal and latter vomitted all over the school bus on the way back.