It's rude to miss a meeting.
Zack has to meet with an important client, but he's been feeling sleepy all day.
Zack wants to get some rest.
Zack takes a short nap and then heads to the client meeting.
Zack sleeps for the rest of the day and misses the meeting.
The client is impressed with Zack and continues to give him business.
The client decides not to do business with Zack any longer.