On the internet definitely 0 (not offended at all), because I've literally dealt with thousands of trolls online and I just know pretty much all their "tactics." (Even if they are serious, I know how to react in those cases)
In real life, however, probably 2. I'm still not offended much, but if someone is blatantly ignorant or making fun of me in certain ways that I know I'd get offended, then I'd be mad.