So, my best friend has never seen Buffy and pretty much hates it because I'm so obsessed. It was therefore highly amusing when she unknowingly quoted. She's going through some boy problems, so I brought her chocolate, but she had blood drawn and is anemic and wasn't feeling well. I told her chocolate fixes everything, and then she said, "Except puking," which was so similar to the exchange in Fear Itself that I had to laugh.
I've also taken up saying, "It's a thing," whenever I just describe something I don't really want to go into detail about. Like, "I have to do a sudoku every day or I wig. It's a thing." Plus, "wig." 🙂