It is wrong to make someone late.
Mary's friend is driving them to work when she realizes that she needs to use the restroom.
Mary wants to go to the bathroom.
Mary waits until they get to work to use the bathroom that is there.
Mary makes her friend pull over to the restroom, so she can go to the bathroom.
Mary's friend is happy that she got to the job site on time.
Mary's friend gets annoyed with her because she made her late to work.