I don't condone bad manners or anger but it does get me thinking as to why someone is acting in a way that is not nice for them and those around them. Maybe they are having a bad day so instead of letting them get your back up and turning away from them ask them what is wrong and sprinkle them in a little love.
Some people might not feel comfortable talking or making the first move to communicate any issues and on that particular day friendships and love might be a little thin on the ground due to their attitude so allow the love from your soul to float out towards their soul.
Love cannot conquer all but it can be given and received making your day feel much better, in some cases once a person can see that you have some time for them and patience they calm down and breathe. We all have off days with sadness and mood swings and how grateful do we feel when someone shows us kindness and the love flows gently from their heart to ours.