SeaHorse, not everyone understands the science of primal/paleo jets or even WANTS to understand it. That doesn't make them bad people or poor friends.
It does make it hard for them to understand why you might be trying to avoid certain foods.
For example, I have a friend who made chili with kidney beans in it the other day. He spent something like eight hours simmering it, soaking beans overnight, chopping veggies, etc, etc. He is a non-primal eater for sure and I've tried explaining it to him, but he could care less I've learned.
I know from experience that kidney beans do NOT agree with me, but I was faced with only two options. 1) do an impromptu IF which says to my friend that I find his choice and polite offering of free food and the effort he went to to make it all unsatisfactory to me, or 2) being the bigger person and just eating it. I chose the latter because it avoided any sort of hurt feelings and/or confrontations with my friend as a result. Yes, I paid for it in unwanted ways, but by avoiding hurt feelings and having my friend think the wrong things about me such as how ungrateful I might have seemed, I think that in the end, I still came out ahead.
Situations like these occur. Sometimes we have to make exceptions with our food choices to avoid other conflicts that can be even worse. Social situations can do this to us and we kind of have to roll with the punches.