I was grocery shopping with all three kids...DD was probably around 9-10months so the boys.were 3 and 6ish. Middle of winter, got out to the car and in the seat of the cart,next to DD was a block of cheese.
I didn't go back in and pay.but I did cut out the scan thing and took it back the next time and paid. The cashier laughed so hard and told me to keep it as a souvenir for my honesty and didnt charge me.
Another day, my oldest.was maybe 3yo and he walked out of Toys R Us with a ball..I did make him walk back in and apologize and return it.