I don't eat meat.
It was an accident many years ago. Had a dodgy bit of ham one Sunday, decided to not eat meat for a few days, which turned into 15 years.
I didn't mean for it to happen and never wanted to be a person who doesn't eat meat and so was always a bit embarrassed about it.
You will note that I don't use the word vegetarian. When I order veggie option, the line always goes "are you vegetarian?" and I respond "I don't eat meat". The majority definition for vegetarian involves someone who doesn't eat meat because of interest in animal welfare. And because I don't have that interest I don't give in to the term.
It's the idea of eating meat that makes me feel sick so I can't eat non-meat that looks like meat, hence Linda McCartney food just defeats the purpose for me. I'd rather eat soup with invisible meat stock than a veggie sausage.
I still like the smell of meat though.