We all have been there. When have to write something specific that might not be our current mood but the project we're working on requires us to write it now. Or those times that you really need or want to write something but the "writers' block" is doing its job which is freezing the brain and not letting us to focus properly. For me personally when it comes to these situations, I do either one or a combination of few of these things to come over the block and do what I'm supposed to do. To write!