The ones you meet online tend to be the psychotic/self-righteous ones. I had a teacher who was vegan while I was in high school. (Not TVT, I'm from Michigan), but he was pretty low key about it. And to top it all off, he was the anatomy teacher, so guess what he had to purchase as part of a lesson? Still born piglets and a cow's heart. The piglets were because a pig's internal layout is similar to a human's. The cow's heart was because the hearts inside the piglets were too small to get a good look at the structure. So, he didn't let veganism stop him from doing his job.