The worst part of hackathons are schedules which leaves no time for actual coding!
I was once at 2 day event. Day 1 contained an intro lecture, 'getting to know your team' exercise, idea generation phase, idea feedback from industry people, mandatory coffee breaks, and a little bit of coding at the end.
Day 2 consisted of 'adding thet final touches to your hack', a random lecture from the company hosting the event, info from the judges on how to pitch, a trial run of the pitch and then the final pitches...
I barely think we got to code for 3 hours.

When you fucked up, but everything is working.

Credits to my son.

She: "I am not getting anything out of these classes!!"

Me: "Try making some Objects first"

*Awkward silence*