I would never say such a thing in Interview, I am aware of the stakes. I may not like Mechanics, but since then I have gone and reviewed most of the material. Conceptually, I understand the material, logically I have an issue. I can understand where you are coming from, but Mechanics is not my strength and I have taken steps to resolve that, such as seek extra help and spend time on it on top of my studies.
TO repeat, I wouldnt say Plasma Physics is Nuclear Energy, it was an inside joke. I apologize for dry humor.