I really hate it when I work on a user story consisting only of a cryptic title: "Implement feature X".

Esp. when I missed planning during a holiday and can only wonder who in their right mind would have given it 3 points.

Why thank you.

Sometimes, just pulling the acceptance criteria out of somebody's nose takes days. It doesn't get better once I realize that not all external dependencies have been properly resolved. It's worse if there are other departments involved, as then you get into politics.

Me: "We are dependent on team X to deliver Y before we should have even planned this ticket. I'm amazed that our team was even able to estimate this ticket as I would have only raised a question mark during estimation meeting. We could have thrown dices during estimation as the number would have been as meaningful and I'd have more time to actually figure out what we should be doing."
Dev lead / PO: "I understand. But let's just do <crazy workaround that will be live until hell freezes over> temporarily."

It's borderline insane how much a chaotic work flow is branded as agile. Let's call it scrum but let's get rid of all the meaningful artefacts that make it scrum.