Perversity

In the sphere of thought, absurdity and perversity remain the masters of the world, and their dominion is suspended only for brief periods.

Hey kids, the word of the week is "pupaphobia"! Others may enjoy being frightened by chainsaw-wielding maniacs and cannibal clowns, but my Halloween is never complete without a murderous Muppet or two. Thankfully, a pair of events last Friday the 13th provided a perfect double feature of puppet perversity.

More generally, for the ULD property to hold, the substitution effects (which are always well behaved) must be large enough to overcome possible “perversities” coming from the wealth effects.

“Of all this world's perversities, there is only one I cannot abide: the kink-shame. I'm off!” “You can't walk out! I'm walking out!”