This is triggered by the thread about letting children sit in supermarket trolleys, and what is and isn't acceptable.
When I take my DD (2.6yo) shopping, I usually get her to sit in the trolley by feeding her throughout the shop. Most of the food is packaged and weighed and I pay for it as normal (with the checkout lady usually holding up the package and saying "Did you know this has been opened?" or "Has a little mouse been nibbling at this one?")
But sometimes she gets hold of (unpackaged, unweighed) grapes and eats a few. I stop her after the first few, and the shelf stackers see it but don't react. But I do let her eat some.
I know all this is theft, and you shouldn't consume food until you have paid for it, and I would never let her eat (say) a whole banana or an apple; but somehow I have lulled myself into thinking that a few grapes won't do any harm. And yes, I know grapes should be washed before eating.
What do you think? Are my DD and I criminals?