you can use agile in a good way here - say you are a dev and somebody wants something from you. your schedule is set, all the tasks for the sprint have been pla

you can use agile in a good way here - say you are a dev and somebody wants something from you. your schedule is set, all the tasks for the sprint have been planned and you commited to doing them. you can just say "i have not time for that but you could try to to talk to the PO. the product owner could adjust the prioritization for the next sprint accordingly.." Working at the shout of other people tends to damage you and the company in the long term (If you are building things and have to maintain them). I understand that not everyone is a developer and this example does not fit every role. Likewise, an "agile" way of working should not be used for every job.