Being Late

Sometimes it can't be helped, but in my opinion, being late is one of the very rudest and most selfish behaviors one person can extend to another person.

Time truly is priceless. Being late can destroy or alter a person's entire day (or more) and like dominos, hurt the plans of other people. Maybe they rush to get to the next thing and die in a car accident. That's the extreme, sure, but you cannot give someone back the time that you've taken from them.