Had junior devs work on a new feature on a project I spent days fixing. They spent days on the new feature but built it off of the broken version of the project and never pulled from the repository. Now when I merged their new feature onto the working and correct branch, their feature is all broken. I swear Im going to kill them all.

Shows client site in progress on demo server. I tell them not all of the responsive styles on a chunk of the pages are done yet.

Client: Everything looks wrong. If it's not working it should say 'coming soon'

Me: This is a demo server, it will be finished before the production server for sure

Client: Put coming soon up please