Attitude-Key to Staying Focused.
As humans we have no control over the attitude of the next person sitting near you or even those you come into contact with on daily basis. You cannot always control the multitude of events that make up your daily actions. What you can and must control is how you respond to their reactions and actions. This is the thing to determine your attitude and will re-direct you to focus on what is important.
Powerful people understand that attitude is a choice. You chose which one that benefits you. I am sure the positive attitude is better.