My Dear Departed Bozo Kitty (aka the best cat on the planet, way back then anyhow) had no tail.

Since I "inherited" him (with the help of the shaman who also lived in my building - yep she "willed me" to adopt him, and clearly it worked ) at the tender age of 14 or thereabouts, I don't know what became of said tail, but my guess was he lost it somewhere along his long and adventurous life.

All he had left of his tail was a bit of a stub, and it was such a hoot when he was agitated, since that stub would spin around like a little helicopter.