Apart from free samples,taste of soup/wine in the supermarket do you eat their food while going down the aisles ? I specalise in open or torn packets.
Today at my local supermarket, There was a box of celebrations split open on the shelf to which I ate about 10. Around the corner in the cheese section was a torn open net of babybel cheese (The ones covered in red wax) I ate about 3 of those. I taste the fruit too.