Spent 2 days of hackathon creating keynote presentation and wrote 0 lines of code. Our "app" was only html and css. We won and I felt sorry for some guys because they had some great apps and still lost to keynote.

Recently was in a recruitment hackathon for leading technology company.
So, to test ppls networking, team building skill they grouped ppl into a team.
I was teamed up with noobs, and had very bad experience.
One guy in the team was arguing to use PHP for developing a web app.
Me : What PHP framework are u good at!?
He: what is framework !?
Me : like laravel etc..
He: no I meant we use plain PHP!

Me (mind voice) : go fuck yourself, I am bailing out , I Do not need the job

Me : It's ohk we only know NodeJs , so, gave a wierd smile

He was still arguing ,but I gave 0 f***
This is considered as a fight!?
Yeah not the worst though
Apparently the recruitment ppl liked him a lot in my team!

Worst Hackathon Experience ever!
Had been to SAP for a hackathon last year. Built a complete solution for our challenge. Due to no sleep and 48 hours of non stop coding, my team mate who was supposed to present our solution screwed it up in the last minute. Now we blame ourselves for losing because of our bad presentation.