Many years ago I went into a less than salubrious Walmart to buy candy bars for the house and at the checkout line was the ubiquitous display of assorted candies. There on display was a Hershey's bar neatly nibbled by at least several mice for several days- had to be at least half inch of candy bar missing in neatly arrayed mouse bites. Needless to say I put the candy bars down and never went there again.