A lot of people say they are vegetarian, when they eat fish. They have it wrong. They are not vegetarian. I had an argument with my sister in law, who told me her friend was vegetarian and ate fish. I told her she wasn't vegetarian, she just said she was. She couldn't get my point and said that her friend had to eat fish for the oil. Could I get it through to her that this didn't negate the fact that she wasn't vegetarian - No.
I eat a predominantly vegetarian diet, but also eat the occasional fish. I don't call myself vegetarian, simply because I'm not. My husband is vegeterian and I was too, for 10 years, so I'm all too aware of the difference. When I go out for a meal with my parents, they often tell the waiting staff that my husband, daughter and I are vegetarian. I don't know why, because there's never a problem getting a veggie dish here anyway. Then I go on to order fish (dinners at home are always vegetarian, so I like a change). Therefore, I often feel obliged to explain to the waiter that my parents have got it wrong again, not that it matters to them. It's most annoying.
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"We act as though comfort and luxury were the chief requirements of life, when all we need to make us really happy is something to be enthusiatic about." Charles Kingsley