I had this boerewors roll, from hereonin (or is it "here on in"? hereonin looks too much like heroin) referred to as a "boerie" and it was one of those boeries where the condom doesn't break when you bite into it and the filling just comes out while the condom remains intact. I hate those boeries. Why does that happen? Is it the ingredients or the way it was cooked or both? How can we identify these boeries before we buy them?