My first and ONLY stuck episode was also with chicken. My nurse told me chicken is one of the worst for this problem with band and bypass patients. It is just a VERY dry meat. She recommended always adding something to chicken like salsa, marina sauce, gravy, or spaghetti sauce.
I know it was a scary thing to have happen. I cried and told my husband to stay away until I got it unstuck. It was definately a learning experience.
Best of luck to you on NEVER experiencing this again!