It always cracks me up when people underline and mark the weather forecast at ETA as IF the word forecast means anything other than an educated guess. Never mind that there's heavy rain at both sides of that so called WINDOW. It is foolish to then blame ATC or whoever else for your pushing your luck and expect ATC to help you out of your self created predicament as if you are the center of the universe and they have no one else to deal with than you. And if you don't know the difference between "minimum fuel" and "mayday", you really should look it up.