following instructions

So today i went to the Mcdonald's and ordered a Filet O fish burger and asked for no mayo. And when i recieved it, there was fucking mayo in it. i went up to the cashier and said hey, i said no mayo. then she said oh we didnt put any mayo. Bitch pls, if you didnt put ANY mayo in my fucking burger, then wtf is this? your CUM?! are you like blind or something that you cant see white? maybe that's why you will never get laid, bitch. then what happened next was me scrapping off the mayo with my finger. yup, they didnt exchange it. Dickheads....