Even if you don't have an "emotional allergy" yourself, you're bound to be in a situation where you have to deal with someone who has. There may be serious injury or even a life may depend on it.

THis is very true which means one not only has to control themselves but have strategies to deal with others. Removing oneself from potential violence is the go to for physical risk. When it comes to ideological only, one can choose to stay and discuss. :)