This one is a trigger for me. My Dad was routinely abused as a Paki in the 70s and 80s. He's Indian and Jewish and never could quite understand why they kept shouting that at him. Its only been in the last decade that my work colleagues (here in NZ) have stopped referring to the Pakistani Cricket Team as Pakis. They never saw it as an offence but indeed as the shorten version of Pakistan. Only those returning from the UK knew better. I guess racism is learned from the Brits.