I had someone at work ruined our project and wasted my time it made me incredibly angry.
How'd they ruin it?
Sorry *ruin. They simply decided they would not do the project according to instructions and just wanted to give me a hard time and ruin the time we had to work on it.
Sounds like a mess, were they punished in some way? 
I hope so. I reported them but who knows? You know how some bosses don't care :/