ruffle someone's feathers
US /ˈrʌf.əl ˈsʌm.wʌnz ˈfɛð.ərz/
UK /ˈrʌf.əl ˈsʌm.wʌnz ˈfɛð.ərz/

1.
to annoy or upset someone
:
•
His blunt comments always ruffle someone's feathers.
•
Try not to ruffle her feathers before the big presentation.
to annoy or upset someone