Basically, every time I feel "oh, that stupid question again" I remember, that it isn't about me, it's about the project. And the project definitely benefits if I answer on this question reasonably and exhaustively.
It helps even in the tester-developer situations: there are some developers who don't take testers seriously. And only reasonable thing that you can do in this situation is to show that testers are useful too. And one way to show it is to help developers (for example, testers can help to update versions, update/write manuals, create test data etc).
Help your developers!
It also helps in situations, when you feel "it's not my work, I don't want to do that". In the scope of project it doesn't matter who did something - it matters that something is done.