Collard greens. My grandparents sold them as a cash crop and cooked and canned all the ones that didnt sell, so I grew up smelling that extremely pungent smell around their house, swore I'd never eat them. Now I love them but they gotta be done right, and better not be sweet. Throw a little hot pepper vinegar to them and that's fine eating. Also now that my grandparents have both passed, the smell is actually pleasant in a weird way, comforting reminder of them and makes me miss them.