It's bad to cancel on friends at the last minute.
Kenny has been invited to go on vacation with a friend in a few days but just found out he has an important meeting he must attend instead.
Kenny wants to let his friend know he cannot make it.
Kenny immediately tells his friend about the meeting to give his friend as much notice as he had.
Kenny spends the next few days planning for the meeting before letting his friend know about it on the day it is happening.
Kenny's friend appreciates the notice and is able to find another friend to go on the trip with.
Kenny's friend is annoyed by the last moment notification and cannot find anybody else to go with them.