McDonalds scene

i went to a McDonald's near my home and decided to act stupid. i went up to the cashier and asked for a whopper, the said that was burger kings, then i asked for a frosty and they corrected me again, i then asked for a Jr bacon cheeseburger, and the cashier started to get annoyed and threatened to get the manager, i then said fine and asked for a slice. she told me to get out or order something. i said alright and ordered corn. the cashier got the manager and i walked out.