Placebos

Wow, cries the patient in plain admiration. And there was I wondering, where you put the placebos?

Frowning, the doctor is adamant there are no placebos, though he was working on a second medicine chest.

I dig, said the patient. Must be in some kind of parallel universe.

The doctor beams.

In the parallel universe, there is only room for placebos.

The patient beaming back:

Glad to I know we are on the same wavelength, Doctor Robert.