A: I don’t like Mary’s boyfriend at all. How can she put up with the way he talks?

B: Harry’s bombastic, arrogant demeanor tends to ruffle people’s feathers, but he’s a decent guy at heart.

Note: If someone ruffles feathers, they say or do something which upsets or annoys people. If a bird’s feathers are ruffled they stand out from its body, for example because it is frightened or angry. This informal saying is a figurative way to mean “to irritate or annoy someone.” For example: All this talk of a strike has clearly ruffled the management’s feathers. The opposite is “to smooth someone’s ruffled feathers,” meaning “to calm someone and make them less angry.”