A friend of a friend once went to some do or other where there was a lavish buffet on offer. She praised some meat item or other to another woman, who replied snootily "Actually, I'm a vegan". "Well, fuck off back to Vega, then", said the foaf.
That, however, is the stereotype. Most veggies and vegans aren't like that, and are not forever telling people that they're a vegan/veggie, contrary to what Clarksonistas and gammons claim. They, on the other hand, are forever telling us how much they love meat, especially the least healthy of all, bacon and sausage. Ironic, what?