Even though they're both adults now, Rita's brother still 'knows how to push her buttons'. [=he is easily able to annoy or frustrate her]
Medical officials says there is no need to 'push the panic button' over two isolated cases of the disease.
With a fax machine, you can send a document across the country with the touch/push of a 'button'.
(..) - I've tried to be fair to you creatures. Now my patience has reached its end! Tell me or I'll-- No, no, not the buttons. Not my gumdrop buttons. All right then. Who's hiding them? Okay, I'll tell you. Do you know the muffiin man? (..)2001 Shrek