#WritersCoffeeClub 18 Nov. Do you include real-world quotations in your work?
Yes, but generally only from a character's mouth, and only when the source is something the character is likely to be familiar with.
It's really easy to break suspension of disbelief with a badly-chosen quote.
Song lyrics are good, too, but for copyright reasons they may need to be paraphrased/reworded if they run to any length (and by "length" I mean more than about ten words). Which is annoying.