Personally, If I was presented with something by my parents as 'funny', was encouraged to sit with them and laugh along, and then when I repeated it got a smack, I'd be utterly confused. I'm not judging or anything like that, but do you not think you are presenting him with mixed messages and double standards here? Would it not have been better to make him understand that language like that isn't appropriate by not sitting him down in front of 90 minutes of it, and laughing along as if it's the best thing in the world? Just saying...
telling people to **** off as an angry 8 year old is wrong in any situation he was told to stop because it was wrong and it was going to get him in trouble he carried on but soon stopped I do not profess to be parent of the year but apparently you can kill people on minecraft which IS aimed at kids even younger than him stop the world we want to get off