I'll try my best to alleviate you bewilderment. I think people are offended because there is a certain "contract" to social interactions that people are expecte

I'll try my best to alleviate you bewilderment. I think people are offended because there is a certain "contract" to social interactions that people are expected to comply with, and this behavior broke that unwritten contract. Furthermore, it's not apparent to readers what could be gained from breaking the contract like that, so it seems like breaking the contract for no reason.