It's wrong to be a lazy bum.
Kevin has been laying around the house and doing nothing for weeks, when he suddenly sees that he has a missed call from a prospective employer.
Kevin has to decide whether to call the prospect back.
Kevin calls the prospective employer back as soon as he sees the missed call and sets up an interview time.
Kevin needs to work but has been enjoying the time off, so he decides not to call the prospective employer back right away.
Kevin gets the job and feels good about himself, and he enjoys his new job.
By the time Kevin calls the employer back, they have already filled the position that was available, leaving Kevin with no money and no job.