Being "let down" Life's like that

I recently read an article about people being "let down" what does this entail you might ask, maybe a friend was supposed to meet you at the cinema and they didn't turn up? or a meeting scheduled and they didn't turn up? a show you were supposed to go to and it wasn't what you thought.... I think each of us dislikes it when you plan or do something that doesn't go according to plan... Maybe life tends to throw curve balls at us to keep us on our toes? who knows eh? life is mysterious.... I personally would feel very sad, not particularly angry but sad none the less and be very wary of that person in the future, especially if the excuse they gave was weak.... Have a great week everyone....