great topic 
well... where to start..
- oven guy decided to change white company trousers behind the oven during the Tesco audit, unfortunately auditor wanted to check EFK behind ovens too.. 
- Engineers stored 2 beers cans in the workshop, the BRC auditor asked to open each metal cabinets to check food safety grade lubricants list, engineer said (laughing) that beer is a real man lubricant. I was dead.
- my factory manager when saw auditor from MacDonald in a white uniform started signing - who you gonna call ghostbusters.. the auditor was angry for 3 days, checking even things in the basement - where usually no one has access.
yeah I love my job