I cut in line when the person ahead of me didn't realize it was time to move forward
Why didn't you just tell him that they're next in line? Were you confronted?
No, I was in a rush
It is wrong to cut the line when there are a lot of people in line. You should tell others because if they see that they might remove you and make you wait back at the end of the line.
The person isn't in sight and who cares, I just need to pay for my food.
You should care as because when you are normalizing cutting in line, then a lot more people will do it and we wouldn't have a trusting society as everyone will just see to it that they will be first in line and no one will be courteous with anyone anymore.