[technothrasher]

I can't stand even slightly rancid oils, and I've found that most people don't notice it at all until you point it out to them. Rancid vs fresh peanut butter is the most noticeable one to let people taste test next to each other. Once they identify the rancid smell and flavor they all agree the fresh is better. Though a couple of times I've hit people who just cannot tell the difference. I envy them.