I think it was really nice to give the money back. In similar situations I usually give it back if it's a smaller mom and pop type of place. But I'm really strapped right now, so if it's a big chain store, then I admit that I usually don't give it back. Especially since usually when they make a mistake it ends up costing me more rather than benefitting me, but I often don't realize it until after I've left.

Once I shopped at a store that sold a lot of plants and all. To save space in my cart, I put my flowers in the pot I was also buying. The cachier didn't notice so I told her it was 2 different things.

I like to be honest, but I'm also afraid that if I don't, the alarm will go off at the entrance of the store and they'll see that I didn't buy all my stuff, and that would be the end of the world x)

I've had times where someone forgets to ring up something that I was purchasing. I like to let them know if that does happen. I feel like most often they just don't add the actual price. But sometimes they do.