I want the person who has never made any mistakes to reply here...............
Of course they can still be trusted! I remember when I think either Taco Bell or Jack in the Box blew up in the media for serving up e coli like 20 years ago... Sometimes, right after a company gets slammed like this, it's the best time to become a customer, because you know damn well that they are being extra careful, taking extra measures, and learned from their mistakes.
Now, if it were to become a pattern over time, then I would say no. But one time? Fine by me. In fact, the companies with the clean records I worry about: What are they hiding and/or when will their "luck" end? :)