I've used Wal-mart's self-checkout a lot, but only if I have very few items or if I'm buying a lot of fruit or produce I have to look up. It IS embarrassing when you screw up too. But, some of the time, it's not your fault, but the people waiting behind you look at you like your an idiot anyway.
Also, I could have stolen items before if I wasn't honest. Once, it wouldn't ring up my soda, so I just took it up to the customer service counter to pay for it so I wouldn't keep other people in the line waiting. It surprised me that the automatic register didn't catch it though! Another time, I bought multiples of the same item, and realized I scanned all but one. Again, I went to customer service to pay for it. What's odd is how the customer service people always acted like it was no big deal! They need to make those things more fool proof for both the customer's sake AND the store's!
