It's rude to exclude coworkers in social gatherings.
Steve was inviting everyone at the office to his birthday party, but Scott was sick that day.
Steve wants to finish inviting people.
Steve drives all the way to Scott's house to give him the invitation.
Steve decides it's too much work to find Scott just to give him the last invitation.
Scott thanks Steve for the invitation and later enjoys the party.
Scott hears about the party and believes he's the only one who wasn't invited.