I think that this is probably racism. My father was accused of shoplifting once - it was a mistake, he had put something in his pocket so he could get his glasses to read a label and forgot it was there -but the store detectives did not attempt to charge him until he was actually leaving the building. In this case, why did the employee accost this man while he was still in the store? You cannot make a credible case someone is trying to shoplift until they are actually going out. This is either a really badly trained employee or something else was in the mix. I think the gentleman is probably right. When I was growing up, I saw the kind of casual and vicious racism white Canadians directed against native people and it was sickening. I doubt that much has changed.