Ugh! I Can't Believe I Have To Wait My Turn

I love these people at cafes who, after ordering, exhale incredulously every time anyone other than them has his/her order called. They're giving them out in the exact sequence in which the orders were taken. Chill the fuck out. Just because you finally made it to the counter to place your order doesn't mean the entire line of people that was in front of you when you walked in magically disappeared.