Mortimer, will you please go change clothes?

Why ever for?

You've been wearing that ratty bathrobe for two months straight.

Tsk, I didn't think of you as being tied to such paltry, earthly things as the outward appearance when all that matters is what's in your heart.

I should have never lent you that Philosophy 101 textbook.

Now if you'll excuse me, I have to go buff my chakras.