"If it's not a 3, then it might be a 5. But if it's not a 5, that would mean it's an 8, and we can't have 8s. 8s are too much. You have to break it down more".
"What is 'too much'?"
"That's too many days of work".
"But I thought points weren't an estimate of time/hours/days, just a level of effort or complexity.".
"8s are too big"
"But... 8 is the best notion at this point. It's a complex problem. Maybe after working through the ticket, a natural break point will present itself and we can chunk it and make a second ticket with follow on work later. But right now, I can't see any split point".
"Well... you have to break it down first. Make this in to multiple tickets. The sprint starts tomorrow and we can't have 8s".