In professional settings you will often encounter requests like: - (Can you) Do this report by tomorrow? - I had a report due yesterday, but I don't understand

In professional settings you will often encounter requests like: - (Can you) Do this report by tomorrow? - I had a report due yesterday, but I don't understand how to login to XYZ to get the data. Can you show me right now? The first one is (depending on who asks) potentially difficult to answer with a short 'No'. The second one may be answerable with 'No' but people like these will spread the word that you are difficult to work with and unfriendly. They will more often than not taint your reputation and create problems in your compensation talks (as being likeable and easy to work with is often a factor in these things).