Ask for a hamburger, Cry dramatically saying "Did they really have to kill the cow" in a sobbing voice.
Out side of the building, protest that they don't add enough salt on the drinks.
Unleash cockroaches secretly.
Sing a song out loud.
Try to rob the store in a poor manner(where a mask that does not allow you to see, ask people that are not at the counter for money, or at least a trashcan).
Pay for your meal entirely in pennies.
Take your car through the drive-thru in reverse.
Inquire what's in the Secret sauce.
Refuse to give them money until they win at Paper/Rock/Scissors.
Prevent all people from eating until you say a prayer (try and find the longest one).
Threaten to move to Antarctica to strangers who don't treat you nicely.
Ask for a burger that looks more like the pictures.
McDonalds new addition to their menu.....
Go to the play place and tell kids strangers have the best candy sand that parents lie cause they don't want you to have it.
Stand by the garbage and prevent people from throwing it out until they pay the fee.
Order a burger, hold the lettuce, tomatoes, meat, buns, ...
Ask the waiter "Would you like fries with that" when they hand you your meal.
When at a drive-thru, order your meal in sign language.
Dress as Ronald McDonald and advice customers not to eat here.
"Don't look at me in that tone of voice!"-Dane Cook
"Let me translate it for you, 'I can't think of any decent rebuttals, so I'll resort to random insults and slink away with my tail between my legs. Also, I'm upset that I can't get my own way. Bye"-Feldspar