Frustration at work !

I know many people face this while working on things that are repetitive in nature. I think when you are working with software programming, there comes a point where you have to repeat what you did before, either it is correcting your code with a new bug that's just evolved or its testing a new bug that's just been fixed. You always need to do sanity and regression testing which becomes seriously monotonous at times. The frustration level rises when you have other things playing inside your head and you can't even concentrate at work, with an even more frustrating boss who keeps poking you time and again with new testing tasks. Testing and Documentation sucks BIG-TIME ! But as they all say, its the most important part of making a software, but someone has to do the dirty-work and last entire week, it was me :( !