I know this is an unpopular idea, but even the belief that you're getting more than something is worth can cause negative emotions which is a negative marginal

I know this is an unpopular idea, but even the belief that you're getting more than something is worth can cause negative emotions which is a negative marginal utility. The marginal utility is really the sum of the economic utility of the dollar and the emotional utility, you can in fact have a negative emotional utility that is greater than the strictly economic utility of the dollar. And to be honest, I don't think I'd ever have that feeling, but it can be a realistic phenomenon.