If any Englishman said he has never called a Chinaman a chink he is lying. There is nothing bad about doing that. It is like calling the British Brits, or the Irish Paddies.
Irish as a Paddy's pig.
Paddy Chayefksy was writing and it was a time where everybody was happy to be there [on TV].
Scots are Jocks,WelshmenTaffies, and Irishmen Paddies or Micks but?it is noticeable there is no similar designation for the English.
As a child, the paddy field was my playground.