[Tristan Lall]

Some spaced-out burger-flipper blew it, or decided to have his way with you. Agreed, it's not too appetizing, but I don't know if you can honestly blame the restaurant chain—if they're anything like McDonalds or KFC, they have rather involved procedures for preparing food, so that it turns out exactly the same, all of the time. Someone didn't follow the procedure, and you got a mouthful of soggy pink flesh as a result.

You got your money back, got an apology, and in the unlikely event that something goes medically wrong with you, you've identified someone with whom you can discuss further compensation. That really seems quite sufficient; boycotting Burger King isn't going to do any good (except reducing the number of 1000-calorie meals that you are tempted to buy). I suppose you might stay away from that restaurant in particular, if you have serious concerns about the staff—but a whole chain? That's overkill.