So the old adage goes, but I'm thinking more of this sort of misery, or perhaps the Amityville Horror with a spin (instead of "For God's sake, get out!" it would be "Fix my broadband first for God's sake, then - but only then - get out!"). This is an amazing story, and one the telecom industry should perversely be proud of. You've achieved something which only a handful of industries (electricity, gas, water, food, tobacco, alcohol, gambling) have cracked - creating a product that customers consider absolutely indispensible once it's embedded in their lives (note that the poor unhinged customer in question had a huge backlog of work to deal with, and her career is clearly deeply dependent on working from home). They almost certainly don't love you, but you don't have to give them reasons to hate you.
Via the excellent Hermes Project