I'm going to cut in line and yell at a mcdonald's employee
Why do you think that you can cut the line?
I'm hungry and I don't want to wait
People standing in line  have come there before you it's unfair for them if you cut the line. It's rude and inconsiderate just coz you're hungry. They're also hungry.
Mcdonald's sucks anyway!
I think that you should just try to be a little more patient. It is not fair to others if you try to cut ahead in line.