I thought, "He's trying to pull a fast one".
or
Three skunks fighting over a pickle
First dog: My master calls me Furball. How about you?
Second Dog: My master calls me Sitboy
or
A whole synod. One to move that the bulb be changed while the others debate until the room spins.
or
He was trying to fetch a boomerang
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What's the use, they'd still have bear feet
or
I said, "I've been on telly but I'm no Dean Martin".
or