Hi @Former-Member and thank you for the great questions!
Like mentioned previously staying mindful at work sometimes can be challenging. Our initial intention is to operate consciously and be aware of two aspects of your moment-to-moment experience's going on around you and what’s going on within you. To be mindful at work means to be consciously present in what you're doing, while you’re doing it, as well as managing your mental and emotional state.
It can all begin by making a clear decision at the start of the day to be present as best as you can. Pause for a moment in your car before commencing work to set this intention in your mind.
Making effort to work more consciously, even if that means working slower - doing so pays in the long run.
Also, giving attention to seeming mundane tasks , like washing your hands, opening doors, dialling phone numbers and even just feeling yourself breathing can make your day a more mindful one.
Switching your attention from how you're feeling to actually having to do routine task and work can be difficult. One exercise you can try and adopt when feeling like this is acceptance that lies at the heart of mindfulness. In order to achieve mindfulness it means to accept this present moment just as it is. Recognising that your tired, that this is just as you are right now. It doesn't mean resignation or giving up, but it allows you to acknowledge the truth of how things are at this time before trying to change anything. Therefore, by applying the mindful techniques mentioned earlier in the comment above whist at working, it can help you feel less anxious about being tired, unable to work and the stress of pending tasks to be done.
When faced with an irate person same principles should apply. Mindfulness can assist by staying in control of your feeling and really understanding the situation in the present moment. By staying in control of your emotions you are able to act and not react. Accepting that the personal reaction of the individual is their way of coping and trying to stay as impartial from their attitude as much as you can.
Try and concentrating on your breathing, listening to the words of the person speaking rather then their tone and taking a moment before replying in order to gather your thoughts. Staying mindful can alter your perception of the situation by giving you more clarity and control of your emotions and reactions to situations.
However, if it becomes too stressful i suggest to take a break from the situation, detaching yourself from the event and try and asses what your feeling and what to do next. Some organisation's have procedures in place for such situations such as escalating the situation to a manager. Remember you dont have to handle the siutation on your own.
I hope i have helped answer your questions