About 300 years ago i worked for a pest control company. And by law any food producing company has to have some sort of pest control service on contract to handle any nasties they might encounter. On my regular list of contracts i had a well known company that makes fishcakes.
For various legal reasons I can't say too much about the things i witnessed in that job, but what i can say is i've never had a fishcake since. Or a kebab, or a particular brand of cheese, or a particular brand of bread, and there's certain pubs i'd never drink in, and certain hotels i'd never stay in, and certain restaurants i'd never eat in, and certain bakery's i stay clear of, and particular landlords i'd never rent a flat from, and certain kennels i'd never trust a puppy with, and.....all in all that job completely changed my life