We all know that once you pick a grocery store line, the others start moving faster. It's a miracle of science. Also, 9 times out of 10, the person in front of you has some sort of issue...credit card won't go through, price check, what have you. But here is my top grocery pet peeve and it happens all the time. It's crowded, but you're next in line. Then, a new line opens up and the helpful checker announces, "I can take the next person over here". The next person in line never gets that spot. It's always the guy who was, like, fifth in line. Aaaaauuuggghhhh. Just once I'd like to hear the checker say, "Sir, I said NEXT in line, not fifth in line." That would make me feel better. Getting it off my chest has made me feel better already.