Obviously any fiction is going to be a combination of what is invented, what is overheard, what is experienced, what is experienced by people close to you, what you are told, what you have read, all mixed together into this kind of soup which, like any good soup, at the end you cannot really disting
If you can't describe what you are doing as a process, you don't know what you're doing.
I love 'Last Call.' It took me a little bit to figure out that I wasn't going to be that guy in a suit telling monologue jokes.