The correct response would be along the lines: 'Sorry, but you have to ask my boss if we can push it to the top of our task list as she has the overview over th

The correct response would be along the lines: 'Sorry, but you have to ask my boss if we can push it to the top of our task list as she has the overview over the priority queue'. That is different than a 'No, I don't have time for that.', as it teaches how to do it right in the future, and your boss doesn't have to get furious because everything that happened was that the team informed the org about the regular process. I have worked enough time in the midst of a QA team to know that planning is essential to their job. Nevertheless, a team lead which is going to be furious because you didn't use the correct process isn't someone you want to ask for help. So, in the long run, it might cause more problems than it solves.