I started to sing to my cat.Usually I'll sing to myself anyway. Classics like The Bacon Song, and I Dropped an Egg on the Floor Again. (Hey, Feynman did that sort of thing all the time, so I am in good company)
Today, it was Ode to Polyethylene:
Polyethylene, oh polyethylene
you are my chosen polymer
that's a bonded monomer
but not like styrene
Polyethylene, oh polyethylene
you are my chosen polymer
that's a bonded monomer
and you aren't Green
What, you don't like that? Should I stop?
Fine. 
I think the way it works is that you're supposed to sing odes in praise of the cat!
Aw. Srsly. Aw.
Do you still sing the Bacon Song in the style of Don Giovanni?