Now I will not talk about some very popular films, because it will be difficult to remember how they ended and what I would like to remember, but the TV series How I Met Your Mother, which has as many as 10 seasons, immediately came to my mind. In the world, it is considered one of the worst endings in history because they made such an ending that simply no one expected and the audience did not like it because the whole series did not make sense because of this ending.