You should take your precautions for the unwanted situations. Because unwanted situations generally makes you feel in a negative way. If you know that you will be disturbed when you are in a hurry, do not leave work for the last minute. For example, leave the house or the office 10 minutes early so that don’t feel in a rush. By doing so you may easily tolerate the traffic congestion and the slow elevators :) Similarly, if you know someone you are uncomfortable to see, find a way to avoid it.By doing so, you can avoid the situations that have risks to create negative feelings on you. To be able to think about t a few small details like these one may affect your life in very positive way. So take your precautions before you are faced with any situation that may bother you and do not let it bother you.