Sounds like you and I are of about the same mind on the place. Can you believe how rude the other shoppers are there?
I don't really worry about rude, I'm probably not the politest shopper in the world (especially not after 10 minutes in Wally, that's when the muttering starts), it's the aisle campers that drive me nuts. A family of 4 stopping to paw everything and yell at their kids with their cart behind them so the aisle is completely block is sure to make me steam. sometimes I think God put these people on earth just to give me cardio workouts.