Sondheim's Use of "Zoo"

Keeping up my pattern of finding idiosyncratic mild-amusements in lyrics, I was walking home from the grocery store today and came to realize...

Sondheim's a fan of rhyming with the word "zoo."
And quite often in or around the beginning sequence

COMPANY
Song: Company
"Jenny, I could take them to the zoo."

Song: What Would We Do Without You?
"Who finished yesterday's stew/
Who took the kids to the zoo"

SUNDAY IN THE PARK WITH GEORGE
Song: Sunday in the Park with George
"Who was at the zoo, George/
Who was at the zoo?
The monkeys and who, George/
The monkey and who?"

SWEENEY TODD
Song: No Place Like London
"At the top of the hole sit the privileged few/
Making mock of the vermin in the lonely zoo"


What other words is Sondheim a fan of over-rhyming?

I actually think he likes the word "hat."

FINISHING THE HAT
A BOWLER HAT
...can't you hide it with a hat.
...does anyone still wear a hat.

I think there are more...

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And delivered by hat-wearing Clergy, so I hear.

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I heard "What's New at the Zoo" from Do Re MI is based on Sondheim's life.

Ouch, you're steppin' on my pouch!

Thats interesting, I never noticed that