Great tasting steak and chops but gamey burger just doesn't compute. Agree with other posters, get rid of the burger, shed a tear and move on. No sense eating it if you don't like it. Get yourself a grinder and process your own meat in the future. Pretty simple to do. Might try grinding up a bit of your good stuff and see how it is. If it is good then you know the problem was at the butcher shop. Try doing it with and without pork fat and see which way you like it best. Without is the healthiest and great for chili etc. but will make a fairly dry burger.