Macavity, Macavity, there’s no one like Macavity,
There never was a Cat of such deceitfulness and suavity.
He always has an alibi, and one or two to spare;
At whatever time the deed took place — MACAVITY WASN’T THERE!

T. S. Eliot (1888-1965) American-British poet, critic, playwright [Thomas Stearns Eliot]
Old Possum’s Book of Practical Cats, “Macavity: The Mystery Cat” (1939)