I wouldn't call myself an "ethical ovo-lacto vegetarian" because it sounds pompous, but it's basically what I am. My position is that raising and killing animals for meat is unjustifiable by any reasonable ethical or environmental standard. However, it is possible for dairy and egg production to be ethical, even though it often isn't in practice. So, I try to source eggs and milk from producers who minimize suffering. For example, I could get eggs from a local smallholding where I can see for myself that the chickens live fairly good lives.