No matter how busy someone is, one should always make time to adequately nourish oneself. If someone doesn't have time to eat a decent breakfast then what does one value in life?
Eating while driving and eating while standing or walking will adversely affect your digestion.
Rushing and hustling your way during the day eventually creates nervous conditions which breakdown into a degenerate illness.
Taking time to eat and feeling grateful for your meal will go a long way in giving you the extra energy you need to accomplish most of the tasks you require to get through your busy day.