Pitches are generally seen as a necessary evil. They're what we need to sell others on a story they don't have time to read themselves. A pitch has to do everything a story does - grab attention, inform the reader and move their emotions - in a fraction of the wordage. Most newbie authors fall hard at the querying stage, simply because they haven't practised pitching - it's a format, just like poetry, novels and short stories, and requires the same level of care. But we rarely practise them. So:

Pitch me your story. You have ten sentences (I don't care how long your story is, you have ten sentences) to summarise your story in a way to grab me, move me, and make me want to read the real thing...