I tried being a vege once.
you know how it is... 16 and all my friends are full of opinions which will pave the way to a bright future and not eating meat was one of them... and I got talked into it... 4 hours later i gave in at the first pork pie and have never looked back. Although the same friends often called me a 'murderer' when I bought a real kebab when they bought a vege one.
Looking back many of them wore real leather jackets or at least Doc Martin's so how it's acceptable to rip the skin of it's back and wear it but not eat the left over's I'll never know. I spent many hours defending my right to eat meat, but other than that, my friends were nice, easy going people, and for the large part, still are 20odd years later.
I know a couple of vege cyclists, but they do eat fish... does that count?