I think we should pay attention to someone's mental state....though more often I think people are more self absorbed in viewing what ever is happening with their own view point....

I know someone who is a very angry person...they have anger issues...and I am definitely aware of when they are angry....they doesn't listen then....to try and have a conversation about something meaningful or important would be a bit ignorant on my part in those circumstances....I wait until they are no longer wrapped up in their emotions.....

Anger is pretty blatant.....easy to spot...there are more subtle emotions that can have just as much effect in people's ability to cope.....Though I think we should always be held accountable for our actions....I don't think an emotional outburst of any kind releases you from responsibility.....unless your mind is so far gone you have no awareness what so ever...and then I think we should be looking out for that person...regardless of who they are or what they feel....

Just my opinion only....