I really, really, really would prefer to use self-checkout at my local store, but the knuckleheads who try to use it just foul up the entire process. I think they should have mandatory training for folks if their check out process takes more that 3 minutes at the self-serve aisle. I'm sick of watch people try to figure out where the bar codes are on their produce, or who don't even know what produce they are buying. It's just infuriating, and forces me to go to the regular checkout line.