I just spent a couple years working at a program for dropout kids in Canada, 95% of whom were First Nations or Métis. And the racism is incredible, and also at least up here, if the word can't apply to you, then do not use the word "Indian."

(Also, "Injun Joe"? How useless a name is that? How will that identify the guy in any other way from every other "Injun" named Joe? Or does he just spend all his time in the company of white people? Does he have no relatives?)