SS: that is my experience too: being told that I shouldn't eat so much full-fat food or put cream in my coffee etc by relatives who are twice my weight (I hover between 65 - 68kg and am 170cm tall). They kid themselves that eating margarine, low fat yogurt etc is going to help when they wash it down with over a litre of coke a day (I don't touch coke... it's almost as evil as Margarine). People definitely are strange.

Yep, butter that has only 2 ingedients: cream and water is the best if you can be organised enough to remove it from the fridge before you need it. And it tastes by FAR the best. I've never experienced rancidity yet although we have a very cool/dark walk in pantry in an older home which helps to keep things like butter/cheese at a healthy temp if left out.