I'm sorry that you can't edit your story. I'm gad that you're taking responsibility (I've seen posts of people acting very childish and defensive). I love your Lego minefield story, now that is scary! I hope that I can compete with you in another contest.
Do not take it so hard on yourself. I understand if you just wanted to share a good story, but know that someone else probably had some value in that story of theirs. I want you to know that no one will judge you harshly for doing so. Buck up! A writer may take inspiration from another's words, but we are writers! We create! No need to take! I want to see you make the best two sentence Horror story ever @Wrenchinator
@Thariel, This isn' the only one. Perhaps there should be a rule against plagiarizing. Unless they can prove they're the original writer (even then, that does still defeat the purpose of writing an original story).
The final barrier between the heroes and the treasure was an unavoidable minefield.
A Lego minefield