Season 6, Episode 23: "The Face Painter"

We discussed toilet paper.

-Toilet paper? -Yep, yep.

I told her how toilet paper hasn't changed in my lifetime...

...and probably wouldn't for the next 50,000 years...

...and she was fascinated, fascinated!

-What are you talking about? -Yeah.

-Toilet paper's changed. -Yeah.

-It's softer. -Softer.