Know what does it to me?
That damned fake butter stuff. There's a brand here that claims to be good for the heart, with all of the Omega-3 stuff in it and whatnot. I figured that it was about the same price as normal butter, and better for me, so I would be a good boy and use that instead.
It's greasy tasting, it's oily, and if you use too much in one sitting it starts to taste really bad, and then it turns your ass into a garden hose within 2 to 3 hours. I've already gone back to straight butter....unsalted of course.