A KFC worker in Cardiff reportedly got angry over rude customers who asked her friends to ‘smile more’.

KFC said that the staff member has been suspended indefinitely, though they assured that there was no real contamination after two other workers said that there was no way the incident would have taken place without them seeing it
“We have thoroughly investigated this incident and can confirm that the content of the post is untrue and that the food was not contaminated in any way. It was a badly misjudged and regrettable social media prank and we'd like to reassure customers that the incident did not happen”, the chain said in a statement.
Source-Medindia