It’s better to learn to turn down requests before others steal your time.
These tips will help:
1. Flattery is a combination of “Thank you, I appreciate your praise” and “But unfortunately I don’t have time to do your work.”
2.Ask for consideration time. Then you can calmly weigh up: How important is that person for you?
3. Argue well. If the boss asks: “Can you do it by this evening?”, then answer, “Unfortunately no, I still need time to get a good result. But it should be perfect by noon tomorrow.”