At the fast food restaurant I work at, one of my biggest pet peeves is when people come thru the drive thru on their phone. the other day a man had ordered his food and in the middle of me repeating it back to him he took a phone call. Like?? Dude really?? I also had a women, who, after I took her order and told her to pull up to the window, she has her f@*king window up and held up a finger for me to wait and its like, you came here?? Get off your f@&king phone. Its rude.