I made the mistake of going in a KFC in Kings Lynn. Whilst waiting at the counter to be served I witnessed the woman preparing a family bucket for the drive through accidentally lob half the chicken on the floor. It hardly bounced before she scooped it back into the bucket and handed it over to the unsuspecting punter, who drove off before I could say anything. She was so slick it looked like standard practice.
I just turned round and walked out. That was 7 years ago, and I haven't eaten at a KFC since.