That's a valid concern in general, but I don't think it applies here for the following reasons: First, being part of a minority group and claiming offense give

That's a valid concern in general, but I don't think it applies here for the following reasons: First, being part of a minority group and claiming offense gives you a lot of power to inflict damage on others. You are leveraging both, the legal system and very strong social stigmas. There is a reason why you are granted this power, but with power comes responsibility. If I walk on a sidewalk and bump into someone, I say I'm sorry and we go about our business. If I'm driving a 18-wheel truck and bump into someone, it's an entirely different story. We don't have a magic gauge to measure your emotional state, so we have to take your word for it. I think scrutinizing your past to ensure that what you say is at least consistent with what you do is a reasonable measure to prevent people from abusing the aforesaid power. Second, if something wasn't offensive to you yesterday, but suddenly is today - even if I'm most sincerely trying to avoid offending you, how do I keep up with the "list of things that offend you" du jour? Do you have a protocol in mind?