In a memorable episode of the HBO series Curb Your Enthusiasm, Larry David is instructed in the universal norm against using the telephone in a doctor’s examination room. David does not subscribe to the norm. Indeed, in his characteristic style, he remains an unrepentant offender.
The doctor whose phone David uses in violation of the norm is none too pleased. Showing a bit more spine than the president of the United States, he even undertakes punitive action to enforce the norm. There must be a moral here somewhere.