When you are at-home-in-you, then your inner state won't topple over by words or action of others.
To be at "Home" in you, takes your self love and self worth to be established.
Yes, we can be triggered by others insensitivity, yet when we are anchored in self, then we see that our Ego can be taken advantage of, not our true inner peace. Yes, we will be tested, how long we stay upset will be short lived.
Your ego will react to trigger, then be aware of your precious ego, it will seek revenge or wait to reengage to be Righteous.
When you can practice to forgive, then forgive your own ego and the ego of those in your life. We release the chains of hurt that bind us, release your chains, then the grenade won't be needed.
That saying "are you upset for the reasons that you think you are or a similar old event" ?
Be at peace (or be right and unhappy )