It's frowned upon to lie to family.
Abe is invited to a family gathering, but is very tired.
Abe wants to get out of going to the gathering.
Abe tells his family that he's exhausted and will come next time.
Abe makes up a story about how he broke his leg and can't come.
His family understands and saves him some food to eat.
A family member sees Abe walking the next day and calls him out on his lie.