It is wrong to lie to people you consider friends.
Mike and Jack are classmates talking about their fathers' occupations and Mike's dad is a janitor at the school.
Mike wants to respond to the conversation.
Mike tells Jack that his father is a janitor at the school.
Mike tells Jack that his father is an accountant.
Jack admires and appreciates the good work of Mike's father done to their school.
Jack sees in an occasion that Mike and his father talk in the hallway and knows that Mike has told a lie.