I remember once in graduate school up at Harvard I went out to dinner with an acquaintance. We had recently met and were trying to become better friends because of shared interests. It was a frigidly cold winter's evening and we both arrived at the restaurant. I was wearing a wool overcoat and a heavy (and oh so warm) Russian mink hat (purchased in Leningrad when it was still Leningrad) and I was quite warm, while it took him a little while to stop shivering. Anyway, I ordered my normal meat laden entree and he ordered a vegetarian plate. He then spent much of the night lecturing me about how "animals have rights too" and that I should be ashamed of myself for eating dead animals and wearing fur. I let him talk and talk and talk for a while. Then I calmly asked him to hold up his jacket, which he did and it was a very nice leather bomber jacket. Then I asked to see his shoes, which were actually leather biker boots. Since the check had arrived I asked him to also take out his wallet. It was leather as well. I then asked him why it was so shameful for me to have eaten a steak and to have worn a fur hat, when he was wearing half a cow. We stayed friends but he never lectured me on animal rights again.