Staying even-keeled and positive isn’t always as easy to do as we might believe. In fact it is harder to maintain this balance when people do or say something little, that can irk the heck out of you. Instead of stewing over it or fuming, I let it out, let it go and do my best to focus on the big picture.
So if you find yourself getting pissed, take a second. Breathe, step back and release it. This way you can move about the cabin freely, without carrying around all that emotional crap with you. Free yourself and think about the fact that we are spirits in humanoid bodies. Remember who you are.