Ariakon on 14 September 2017
We're all prone to irritation, and getting upset and even lashing out once in a while is perfectly normal, even if you would have rather handled it another way. In fact, sometimes it is best to be stern with these people, as without any boundaries being set, they think what they are doing is not only acceptable, but preferable. If the guy is going to be so offended at his causing offense, then perhaps it is for the best that he finally had someone to help set him straight (at least partially). I wouldn't feel guilty about it, if I were you.
