Because I usually charge for readings, if someone returns with the same questions more than once, I won't read for them but will instead recommend another reader in the same area.
I don't mind doing it the first time, because something might have changed - but I'll usually get a sense that the person isn't doing their homework, so to speak! If they have returned, with the same issues and questions, my second reading will be more directive, more inquisitive in tone than the first - I'll try my best to make them see the part they need to be playing (according to the cards). Usually I find such customers to be extremely passive - they're waiting for something to happen, rather than do anything. They'll say things like "if it's meant to be" and trust in Fate, Destiny, Karma, whatever. Sometimes they think the act of a reading will somehow cause something magical to happen in their lives - "living lives in quiet desperation is the English way"
I find that some folk simply want the reader to reflect their hope, regardless of the evidence. I can't do that in Tarot reading any more than I'd do that with a friend - I can be sympathetic yes, but I'm not taking someone's money - or allowing them to take my time- to go over the same old, same old.
In the OP, you ask for examples, but I have to say in 30+ years of reading, I've far too many examples. Which is sad, and it's a way by which the unscrupulous ply their trade and bring the rest of us into disrepute - not you darling!
If it's a friend, I just don't even bother to get the cards out btw. I just put the kettle on, open a packet of biscuits and listen to the tale again (and again and again).