Vegan: 'No thankyou, I'm a vegan.'
Omnivore: 'Oh, one of those. I suppose you're going to lecture me on how bad it is to eat meat.' (waves meat in vegan's face).
Vegan: (looks at omnivore disdainfully) No, but I would prefer it if you didn't wave meat in my face. (Waves tofu burger in omnivore's face).
Omnivore: (Shrinks back in true terror).