Drunk in church

[rebbonk]

A drunk staggers into a Catholic Church, enters a confessional booth, sits down, but says nothing.

The Priest coughs a few times to get his attention but the drunk continues to sit there.

Finally, the Priest pounds three times on the wall.

The drunk mumbles, "ain't no use knockin,

Spoiler:

there's no paper on this side either!"

[Melisandre]