You should be there for others when they need you.
Ken is very tired and gets a late call from a friend who is in distress.
Ken wants to get to bed soon.
Ken offers to call them back tomorrow in order to be of more help at a better time.
Ken hurries off the phone after a few minutes and leaves his friend to deal with their own problems.
Ken's friend is able to get the help that they need.
Ken's friend feels brushed off and it affects their friendship.