Explanation:
This is a management strategy used mainly against people that provide deliverables such as developers.
It’s a two phase strategy.
The first stage is to ask about a largish deliverable, one that might take a full sprint (2 weeks) or more and to get a firm completion date on it. When the developer/resource gives that date as an honest answer based on 100% of their time being dedicated to it, write that down, write it in stone.
Then later on, even in the same planning meeting, ask for a much smaller deliverable, suggest a much shorter delivery date “as it will only take a sec”, But crucially don’t mention it in context to the larger delivery already promised.
Keep doing this until the developer massively over commits, but in a way that you are not to blame as you asked them in the hearing of others on a meeting.
This is a classic old school dirty trick for those who care far more about project plans than deliverables, and originally came from the Mr. Creosote seen in Monty Python’s the meaning of life.
Disclaimer: As always these posts are not aimed at anyone client or employer and are just my personal observations over a lifetime of dealing with both management and frontline associates.