Class: so you don't drink milk?
Me: No, only soy milk.
Class: but you eat fish, right?
Me: no. And when was the last time you saw fish growing on a tree?
Class: but how about cheese?
Me: cheese is made from milk. So, no. I don't eat cheese. Look, I don't eat anything that farts, or anything that comes from anything that farts, or anything that has a face.
Class: hmmmm. But that can't be healthy.
Me: I've not missed a day of class yet, and many of you have because you caught that cold going around. Also, how many of you ride your bikes 100 miles each weekend, and 20 miles a day like I do? Could I really do all that riding if veganism was 'unhealthy?'
Class: (perplexed) ummmh. well, it can't be healthy! (now getting hostile) We need meat! Plus, we like it. And you're weird, professor!