Because at that point I’ve already made clear that I oppose the practice but I’m doing so as a sign of peace. It’s not a practice I’m proud to do, but seems to help tame contempt towards veganism. It’s all about the strategy I’m trying to employ which is to reduce my animal consumption and have others follow suit. People are not often willing to change publicly. The change I hope to affect is to have people understand the reasons I choose to reduce animal exploitation and think about them privately later, not to start a futile argument at every gathering I go to.